Pay by Phone Casino: How Mobile Billing Works for UK Players in 2026
Pay by phone casino options have grown from a niche payment method into a standard feature across the UK iGaming market. Roughly 1 in 4 British players now use mobile billing at least once a month, drawn by the instant deposits and the absence of card details. The system relies on your mobile network operator adding charges directly to your monthly bill or deducting them from prepaid credit.
What makes this payment route appealing is its speed. A deposit lands within 10 seconds of confirming the transaction, and the money never touches a bank account. Operators like Boku and Zimpler process the payment on behalf of the casino, taking a small fee from the merchant side. The player only sees a charge from their network provider, such as EE, Vodafone, O2 or Three.
This guide breaks down how pay by phone casinos operate, which brands accept the method, and where the hidden costs sit. You will also find a myth-busting section covering RTP, RNGs and jackpot mechanics, because misinformation in this niche runs deep. The focus stays on the UK market, its regulations and what the 2026 landscape actually looks like.
How Does Pay by Phone Billing Work at Online Casinos?
Mobile billing works through a payment aggregator that confirms your identity via your phone number. When you select pay by phone at checkout, the casino sends a one-time passcode by SMS. You enter that code on the payment page, the operator verifies it with your network, and the deposit amount lands in your casino account instantly.
The aggregator then settles the funds with the casino, while your network provider collects the money from you. Postpaid customers see the charge on their next monthly bill, which typically arrives within 30 days. Prepaid users have the amount deducted from their credit balance immediately, leaving less room for surprises.
Transaction limits exist for a reason. Most UK networks cap single deposits at £30, with a daily ceiling of £60 and a monthly maximum of £240. These caps come from voluntary agreements between mobile operators and payment providers, not from UK gambling law. Players who want higher limits must combine pay by phone with other deposit methods.
Which UK Mobile Networks Support Casino Payments?
All four major UK networks support pay by phone casino transactions, but they do not all apply the same rules. EE and O2 allow deposits up to £30 per transaction, while Vodafone and Three apply the same ceiling. The daily limit across all four sits at £60, meaning you can make two separate deposits of £30 each within a 24-hour period.
Smaller virtual networks such as Sky Mobile, Tesco Mobile and giffgaff also process these payments, since they run on the physical infrastructure of the bigger operators. If your network resells EE or O2 coverage, the same limits apply. Customers of business or corporate tariffs may find that pay by phone is disabled entirely, as many employers block premium services on company devices.
One practical detail: the phone number used for payment must match the one registered with the casino. If you deposit from a different device, the SMS verification will still arrive on the registered handset. This adds a layer of security but can frustrate players who switch SIM cards frequently.
What Fees Apply When You Deposit via Mobile Bill?
Players rarely pay direct fees for pay by phone deposits, because the casino absorbs the transaction cost. Operators like Boku charge merchants between 10% and 15% of each transaction, which explains why casino bonuses for mobile billing deposits tend to be stingier. The casino recoups that margin by offering lower match percentages or wagering requirements on the high side.
Indirect costs appear elsewhere. Some networks classify casino deposits as premium-rate services, which means they may not count toward inclusive minutes or data allowances. In practice, this only affects customers on legacy tariffs from before 2015. Modern contracts treat SMS verification as a standard message, so no additional charges apply.
Prepaid users should watch their balance carefully. If you have £5 of credit and attempt a £10 deposit, the transaction fails without charging you. The casino account receives nothing, and no pending charge appears. This contrasts with postpaid billing, where an approved deposit always lands, even if it pushes your monthly spend higher.
How Long Do Pay by Phone Casino Deposits Take to Arrive?
Deposits via mobile billing are instantaneous in nearly all cases. The SMS verification takes 5 to 10 seconds to arrive, and once you enter the code, the casino credits your account within another 5 seconds. Total time from checkout to playable balance rarely exceeds 30 seconds, making this one of the fastest deposit methods available in the UK market.
Withdrawals are a different story. Pay by phone is a one-way payment rail, so casinos cannot send winnings back to your mobile bill. Instead, you must choose an alternative withdrawal method, such as bank transfer, PayPal or a debit card. Most UK-licensed casinos process withdrawals within 24 to 72 hours after verification checks complete.
The speed difference catches many new players off guard. You can deposit £30 in seconds but wait 2 business days for a £500 withdrawal to reach your bank. This asymmetry is not a flaw in the system — it reflects the structural limitation of mobile billing, which was designed for micro-transactions, not payouts.
Top Pay by Phone Casino Brands Available in the UK
The UK market offers a wide selection of casinos accepting pay by phone, but quality varies considerably. Some brands hold licences from the Gambling Commission (UKGC), while others operate under Malta Gaming Authority (MGA) permits and still accept British players. The list below focuses on operators that process mobile billing deposits without friction.
Licensing matters more than brand recognition. A UKGC licence means the operator follows strict rules on affordability checks, deposit limits and self-exclusion. An MGA licence offers similar player protections but with less aggressive enforcement. Both are legitimate, yet the practical experience differs, especially around withdrawal verification.
Which Licensed Operators Accept Pay by Phone Deposits?
Betway casino has accepted pay by phone deposits since 2018, with limits matching the £30 per transaction standard. The brand holds a UKGC licence and offers a sportsbook alongside its casino, which makes it a practical choice for players who want both verticals under one roof. Withdrawal times run between 24 and 48 hours for e-wallets.
Casumo casino joined the pay by phone club in 2020 and remains one of the more player-friendly options. Its wagering requirements on mobile billing deposits sit at 35x, which is average for the industry. Casumo holds both UKGC and MGA licences, so UK players get full regulatory protection.
MrQ casino operates UK-only and built its entire payment infrastructure around instant methods. Pay by phone deposits arrive immediately, and the casino does not apply wagering requirements to mobile billing deposits. This makes MrQ an outlier, as most operators treat pay by phone like any other deposit method for bonus purposes.
LeoVegas casino, 888 Casino and PlayOJO casino also accept mobile billing, though each applies different bonus terms. PlayOJO stands out by converting bonus funds into cash with no wagering requirements, a model that benefits players who dislike complex terms. The trade-off is a smaller match percentage on initial deposits.
What Are the Best Pay by Phone Casino Bonuses in 2026?
Bonus structures for pay by phone deposits have tightened over the past two years. The average welcome offer now sits at 100% up to £100, compared to 200% up to £200 in 2023. This shift reflects the higher processing fees that casinos pay on mobile billing transactions, which eat into promotional budgets.
Free spins bundles remain common. A typical offer includes 50 to 100 free spins on a selected slot, often from NetEnt or Pragmatic Play. These spins usually carry a 40x wagering requirement and a maximum win cap of £100. Read the terms before committing, because the cap applies even if the slot pays a jackpot.
Some operators exclude pay by phone deposits from bonus eligibility entirely. Betfred casino and Grosvenor Casinos, for instance, only extend welcome bonuses to card and bank transfer deposits. Always check the promotional terms page before depositing, as the payment method filter is easy to miss.
| Casino Brand | Licence | Max Deposit | Wagering on Bonus | Withdrawal Time |
|---|---|---|---|---|
| Betway | UKGC | £30 | 50x | 24-48 hours |
| Casumo | UKGC + MGA | £30 | 35x | Up to 72 hours |
| MrQ | UKGC | £30 | No wagering | 24 hours |
| LeoVegas | UKGC + MGA | £30 | 40x | Up to 48 hours |
| PlayOJO | UKGC | £30 | No wagering | Up to 72 hours |
| 888 Casino | UKGC | £30 | 45x | Up to 48 hours |
Offshore Pay by Phone Casinos: What Changes for UK Players?
Several offshore operators accept British players through pay by phone without holding a UKGC licence. Brands like Mystake casino, NineWin casino and Roobet casino operate under Curacao licences, which offer minimal player protection. Deposits work the same way, but chargebacks and dispute resolution become significantly harder.
The practical difference emerges with withdrawal limits and verification. Curacao-licensed casinos often impose weekly withdrawal caps of €1,000 to €5,000, while UKGC-licensed operators rarely restrict winnings. Verification also takes longer offshore, with some brands requesting documents repeatedly over several days.
Players who choose offshore sites should understand the risk profile. The UK Gambling Commission cannot intervene in disputes with Curacao operators, and the Financial Ombudsman has no jurisdiction. If a withdrawal stalls, your only recourse is the casino's internal complaints process or the Curacao Gaming Control Board, which processes complaints slowly.
Myth-Busting: RTP, RNG and Jackpot Mechanics Explained
Misinformation about casino mathematics spreads faster than verified facts. Players repeat half-understood concepts about RTP percentages, random number generators and jackpot cycles as if they were gospel. This section separates what the law requires from what marketing departments imply.
The Gambling Commission mandates that all licensed casino games use a certified RNG, but it does not prescribe a minimum RTP. That means a slot can legally return 80% or 98% over its lifetime, as long as the published figure matches the actual game behaviour. Independent testing labs like eCOGRA and iTech Labs verify these numbers before games reach the market.
Does RTP Really Mean You Get 96% of Your Money Back?
RTP, or return to player, represents the theoretical percentage of all wagers a game returns over an infinite number of spins. A slot with 96% RTP does not guarantee you personally receive £96 for every £100 wagered. The figure only holds across millions of spins by thousands of players.
Short-term variance dominates real gameplay. A player might deposit £30, spin 200 times on a 96% slot, and walk away with £150 or £0. Both outcomes fall within normal statistical distribution. The RTP only becomes meaningful after 10,000 or more spins, which explains why individual sessions feel nothing like the published percentage.
Pay by phone casino players face an additional constraint. The £30 deposit cap limits how many spins you can fund in a single session, which increases the impact of short-term variance. A 96% RTP slot played with £30 might produce a 200% return or a total loss — neither result contradicts the game's mathematics.
How Do Random Number Generators Actually Work?
A random number generator produces thousands of numbers per second, even when nobody is playing. Each number maps to a specific symbol combination on the reels. When you press spin, the game captures the next number in sequence and displays the corresponding outcome. No memory of previous spins exists.
The RNG does not adjust based on your bet size, the time of day, or how much you have lost. Each spin operates independently, with the same probability distribution as every other spin. This property, called statistical independence, forms the mathematical foundation of fair gambling.
UKGC regulations require licensed casinos to use RNGs certified by approved testing laboratories. The certification process examines the algorithm's randomness properties, including its period length and distribution uniformity. Certification happens before release, then games undergo periodic re-testing to ensure nothing changed.
Are Progressive Jackpots Ever "Due" to Pay Out?
Progressive jackpots accumulate a portion of every wager until one player hits the winning combination. The misconception that a jackpot becomes "due" after reaching a certain size contradicts how RNGs operate. The odds of hitting the jackpot remain identical on every single spin, regardless of the current prize value.
Take a typical progressive slot with a jackpot probability of 1 in 50 million. Each spin carries that same 1 in 50 million chance, whether the jackpot sits at £100,000 or £5 million. The increasing prize does not alter the underlying probability, though it does change the expected value of each spin.
Expected value calculations explain why some players chase large jackpots. If a £1 spin carries a 1 in 50 million chance at a £5 million jackpot, the jackpot contributes 10p of expected value per spin. Add the base game RTP of 90%, and the total expected return reaches 100%. The mathematics favour playing only when jackpots exceed certain thresholds.
Do Casinos Manipulate Pay by Phone Deposit Outcomes?
Casinos cannot manipulate game outcomes based on your deposit method. The RNG operates independently of the payment rail, and the game server has no information about whether you funded your account via mobile billing or a debit card. Regulatory audits would detect any attempt to link payment methods to game results.
The perception of manipulation often stems from confirmation bias. Players remember the sessions where they deposited £30 and lost everything, while forgetting the sessions where they withdrew winnings. This selective memory creates the illusion that pay by phone deposits carry worse odds than other methods.
One legitimate concern involves bonus abuse detection. Casinos monitor players who deposit via pay by phone, claim a bonus, and immediately attempt withdrawals. If the system flags your behaviour as bonus abuse, the casino may restrict your account or void winnings. This policy applies regardless of payment method, though the higher fees on mobile billing make operators more vigilant.
What Is the House Edge and Why Does It Matter?
The house edge represents the mathematical advantage the casino holds over players on every bet. For European roulette, the house edge sits at 2.70%. For most slots, it ranges between 2% and 10%, depending on the game's RTP. Blackjack with perfect basic strategy reduces the house edge to around 0.50%.
Pay by phone casino players face a unique interaction between the house edge and deposit limits. With a £30 maximum deposit, the house edge consumes a larger proportion of your bankroll in a single session. A 5% house edge means the casino expects to keep £1.50 of every £30 wagered, though variance can obscure this over short periods.
Game selection matters more than most players realise. Choosing a slot with 97% RTP instead of 94% RTP reduces the house edge by a third. Over 100 spins at £0.50 per spin, the difference amounts to £1.50 in expected losses. Over a year of regular play, this gap compounds into significant sums.
Deposit Limits, Security and Responsible Gambling at Pay by Phone Casinos
Pay by phone deposits carry inherent spending controls that card payments lack. The £30 per transaction cap and £60 daily limit create natural friction against impulsive deposits. Players who want to gamble more must actively switch payment methods, which introduces a deliberate step that many find helpful.
Security works differently with mobile billing. Since the payment never involves a bank account or card number, the exposure of financial data drops to zero. The casino only receives your phone number and the aggregator handles the rest. This reduces the attack surface for fraudsters who target online gambling accounts.
Why Do Pay by Phone Casinos Have Lower Deposit Limits?
The £30 transaction cap stems from the UK Mobile Payments Code of Conduct, which major networks adopted in 2015. The code aims to prevent fraud and protect vulnerable customers from excessive spending via premium-rate services. Operators feared that unlimited mobile billing would enable runaway gambling debts charged to phone bills.
Monthly limits provide an additional safeguard. The £240 monthly ceiling across all pay by phone transactions means a player cannot lose more than £240 per month through this method. Players who want higher stakes must transition to debit cards, which triggers the casino's affordability checks under UKGC rules.
These limits explain why pay by phone suits casual players rather than high rollers. A recreational player depositing £30 twice a week stays within the monthly cap while enjoying the convenience. A serious gambler betting £500 per session will find mobile billing frustratingly restrictive.
What Protections Exist for Problem Gambling?
UKGC-licensed casinos must offer self-exclusion through GAMSTOP, the national online gambling self-exclusion scheme. Registration with GAMSTOP blocks access to all UK-licensed gambling sites for a chosen period of 6 months, 1 year or 5 years. The service covers over 300 operators and processes registrations within 24 hours.
Pay by phone adds a second layer of protection through network-level blocks. Customers can ask their mobile operator to bar premium-rate services, which prevents all pay by phone casino deposits. EE, Vodafone, O2 and Three all offer this barring service free of charge, and activation takes effect within 24 hours.
Deposit limits set through the casino's responsible gambling tools apply regardless of payment method. Players can set daily, weekly or monthly deposit caps that the system enforces automatically. These limits supplement the network-level caps, creating multiple barriers against excessive spending.
How Do You Set Deposit Limits at a Pay by Phone Casino?
Setting deposit limits takes less than 2 minutes through the casino's responsible gambling page. Navigate to the account settings, select responsible gambling, and choose your preferred limits. Most operators offer daily caps from £10 to £5,000, weekly caps from £50 to £20,000, and monthly caps from £100 to £50,000.
Once set, deposit limits cannot be lowered immediately. UKGC rules require a cooling-off period of 24 hours before a limit reduction takes effect, while increases require a 72-hour wait. These delays prevent impulsive changes during losing sessions, a common trigger for gambling-related harm.
The casino must also offer a reality check feature that reminds players how long they have been playing. UKGC regulations mandate that this reminder appears every 60 minutes of continuous play. Players can adjust the frequency, but they cannot disable the feature entirely on UK-licensed sites.
Can You Self-Exclude from Pay by Phone Casinos?
Self-exclusion through GAMSTOP covers all UKGC-licensed casinos, including those accepting pay by phone. Registration takes about 5 minutes online and requires your name, date of birth and address. The exclusion becomes active within 24 hours, and the operator must remove your account from active status immediately upon notification.
During the exclusion period, the casino must not send promotional materials, accept deposits or allow gameplay. Attempts to register new accounts using different email addresses or phone numbers fail, because GAMSTOP matches against a database of personal details. The system catches most attempts at circumvention.
Offshore casinos that accept UK players do not participate in GAMSTOP. If you hold accounts with Mystake casino or NineWin casino, self-exclusion only works through each operator's internal process. This gap in coverage represents a genuine risk for players who migrate to offshore sites during a GAMSTOP exclusion.
What Happens If You Dispute a Pay by Phone Charge?
Chargebacks work differently for mobile billing than for card payments. You cannot simply contact your bank and reverse a pay by phone casino deposit, because the charge comes from your network provider, not the casino. The dispute process starts with your mobile operator, which investigates whether the transaction was authorised.
If you believe a deposit was fraudulent, contact your network's fraud team immediately. They will investigate the transaction and may refund the amount within 10 working days. The casino also has a complaints process under UKGC rules, and unresolved disputes escalate to the Independent Betting Adjudication Service (IBAS) after 8 weeks.
Legitimate deposits that you regret cannot be reversed. Pay by phone operates as a confirmed transaction, similar to a debit card payment with 3-D Secure. Once you enter the SMS code and the deposit lands, the casino owes you the funds in your account, subject to their withdrawal terms and wagering requirements.
Comparing Pay by Phone with Other Deposit Methods
Pay by phone occupies a specific niche in the deposit method landscape. It offers unmatched convenience for small deposits but falls short for players who want to move larger sums. Comparing it with alternatives like debit cards, e-wallets and prepaid vouchers clarifies where each method excels.
The table below summarises the key differences across deposit methods available to UK players. Fees, processing times and limits vary by operator, so treat these figures as industry averages rather than universal constants.
| Method | Min Deposit | Max Deposit | Processing Time | Withdrawal Support |
|---|---|---|---|---|
| Pay by Phone | £5 | £30 per transaction | Instant | No |
| Debit Card | £10 | No fixed cap | Instant | Yes, 1-3 days |
| PayPal | £10 | Varies by casino | Instant | Yes, up to 24 hours |
| Paysafecard | £10 | £100 per voucher | Instant | No |
| Bank Transfer | £20 | No fixed cap | 1-3 business days | Yes, 1-5 days |
Why Choose Pay by Phone Over Debit Cards?
The primary advantage of pay by phone over debit cards is the separation of gambling spend from your main bank account. Mobile billing charges appear as a network provider cost, which some players find easier to track separately. The £30 deposit cap also enforces a natural spending limit that cards do not provide.
Privacy considerations matter for some players. A pay by phone deposit does not appear on your bank statement with a casino name attached, which avoids awkward conversations for shared accounts. The network bill simply shows a charge from your provider, with no indication of the merchant category.
The drawbacks are equally clear. Pay by phone offers no withdrawal support, forcing you to maintain an alternative method for cashing out. Debit cards handle both deposits and withdrawals, simplifying the financial flow. Players who value simplicity over privacy may prefer cards despite the higher minimum deposit.
Are E-Wallets Better Than Pay by Phone for Casino Play?
E-wallets like PayPal, Skrill and Neteller offer higher deposit limits and faster withdrawals than pay by phone. A PayPal withdrawal typically processes within 24 hours, compared to the 1 to 3 day wait for bank transfers. Players who win regularly often prefer e-wallets for this speed advantage.
However, some UK casinos exclude e-wallet deposits from welcome bonus eligibility. This policy stems from the ease of bonus abuse through e-wallet cycling, where players deposit, claim bonuses and withdraw without genuine gameplay. Pay by phone deposits rarely face this exclusion, because the higher fees and lower limits discourage abuse.
The choice ultimately depends on your playing style. Casual players depositing £30 weekly benefit from pay by phone's simplicity and spending controls. Regular players moving £200 or more per session need e-wallets or cards, despite the bonus restrictions that come with those methods.
How to Choose a Safe Pay by Phone Casino in the UK
Selecting a safe pay by phone casino requires checking three elements: licensing, payment processing and responsible gambling tools. Each element carries specific indicators that separate legitimate operators from questionable ones. The checklist below applies to any casino you consider.
Licensing verification takes 30 seconds. Visit the Gambling Commission website and search for the operator's licence number, which appears in the casino footer. The licence must be active, not suspended or revoked. A casino that displays a UKGC logo without a verifiable licence number deserves suspicion.
What Red Flags Should You Watch For?
Unrealistic bonus terms signal potential problems. A welcome bonus of 500% up to £500 with 20x wagering requirements does not exist at reputable casinos. Such offers usually hide punitive terms, including maximum withdrawal caps of £100 or game restrictions that make the bonus impossible to clear profitably.
Slow withdrawal processing indicates cash flow issues. UKGC rules require casinos to process withdrawals promptly, but some operators delay payments hoping players reverse them. If a casino consistently takes more than 5 business days to approve withdrawals, look for reviews from other players before depositing more money.
Missing responsible gambling tools represent a compliance failure. UKGC-licensed casinos must offer deposit limits, reality checks and self-exclusion links. The absence of these features suggests the operator either lacks a licence or ignores regulatory requirements. Neither scenario bodes well for player protection.
How Do You Verify a Casino's Licence?
The UKGC maintains a public register of all licensed operators, searchable by name or licence number. Each entry shows the licence type, status and expiry date. Casino licences for remote gambling carry the prefix 000-000, followed by the operator's unique identifier.
Cross-reference the licence holder with the casino brand. Some casinos operate under white-label agreements, where a third party runs the brand using another company's licence. This arrangement is legal, but it means the licence holder, not the brand, bears regulatory responsibility. Check whether the licence holder has a history of enforcement action.
The UKGC publishes enforcement actions, including fines and licence suspensions, on its website. Recent examples include fines of £17 million against William Hill in 2023 and £19.2 million against 888 Holdings in 2022 for social responsibility failures. Reviewing these actions reveals which operators cut corners.
What Role Do Payment Aggregators Play in Safety?
Payment aggregators like Boku and Zimpler act as intermediaries between the casino and your mobile network. These companies hold their own licences and must comply with financial regulations. A reputable aggregator conducts due diligence on the casinos it serves, creating an additional layer of vetting.
Boku serves over 8,000 merchants globally and processes billions in transactions annually. The company holds regulatory approvals in multiple jurisdictions, including the UK. Zimpler operates similarly, with a focus on Nordic and UK markets. Both companies publish their casino partners, allowing players to verify legitimacy.
If a casino claims to accept pay by phone but the payment page shows an unfamiliar aggregator, proceed with caution. Verify the aggregator's name through the casino's payment terms page. A legitimate operator uses recognised aggregators, not obscure payment processors with no regulatory footprint.
Frequently Asked Questions About Pay by Phone Casinos
Players consistently ask the same questions about pay by phone casino deposits. The answers below address the most common concerns with specific, practical information. Each response reflects current UK market conditions as of early 2026.
What Is the Minimum Deposit at a Pay by Phone Casino?
The minimum deposit typically sits at £5, though some casinos set the floor at £10. This threshold matches the minimum transaction size that mobile networks accept for premium-rate services. Deposits below £5 would cost the aggregator more in processing fees than the transaction generates in revenue.
Can You Withdraw Winnings to Your Phone Bill?
No. Pay by phone operates exclusively as a deposit method, with no mechanism for sending funds back to your mobile account. You must select an alternative withdrawal method, such as bank transfer, PayPal or debit card, when cashing out your winnings.
Do Pay by Phone Deposits Affect Your Credit Score?
No. Pay by phone deposits do not appear on your credit report, because they are not credit agreements. The charge simply appears on your monthly mobile bill, which credit reference agencies do not factor into scoring models unless the bill goes unpaid for extended periods.
Are Pay by Phone Casino Winnings Taxable in the UK?
No. Gambling winnings in the UK are not subject to income tax, regardless of the deposit method used. This exemption covers all casino games, sports betting and lotteries. The only exception involves professional gamblers whose activity constitutes a trade, a rare classification that HMRC applies narrowly.
What Happens If Your Phone Bill Goes Unpaid?
Unpaid mobile bills can trigger debt collection, and the network may block your ability to make pay by phone transactions. The casino does not pursue unpaid deposits directly, because the aggregator assumes the risk. Your network provider handles collection through standard billing procedures.
Can Under-18s Use Pay by Phone at Casinos?
No. UK gambling law sets the minimum age at 18, and casinos must verify age before allowing deposits or gameplay. Mobile networks also prohibit premium-rate gambling services for customers under 18. Attempting to circumvent these checks through false information constitutes fraud.
Pay by phone casino deposits offer UK players a fast, secure and controlled way to fund online gambling accounts, with the £30 transaction cap and £240 monthly ceiling providing natural spending boundaries. The method suits casual players who value convenience and privacy, though the lack of withdrawal support means maintaining an alternative cash-out route remains essential. Always verify the casino's UKGC licence, review bonus terms for payment method exclusions, and use the responsible gambling tools available to keep play within comfortable limits.
Gamble responsibly. 18+ only. Pay by phone casino deposits require you to be at least 18 years old. If gambling stops being fun, help is available. Call the National Gambling Helpline free on 0808 8020 133, available 24 hours a day, 7 days a week. You can also register for self-exclusion through GAMSTOP at gamstop.co.uk, which blocks all UK-licensed gambling sites for 6 months, 1 year or 5 years.