How a Casino Deposit Becomes a Charge on Your Phone Network Bill
Tap 'pay by mobile' in a casino cashier and the request goes to a billing aggregator first, not straight to your network. Siru Mobile and PayviaPhone are the two aggregators you'll actually meet on UK casino sites today, and each has its own economics: Siru wants a minimum £10 deposit and takes roughly 25–33 percent as its fee, PayviaPhone runs closer to 15 percent. Boku still survives at a shrinking handful of sites, from £5 where it's offered; the old Intouch Games in-house route, which ran from £3, closed when In Touch Games Ltd surrendered its UKGC licence in September 2023. That fee is a big part of why phone-bill limits sit lower than card limits.
The aggregator then hands the transaction to your network, which is the step that actually decides whether it goes through: is charge-to-bill enabled, are you inside the spend cap, is gambling specifically barred. Two constants across every network on this page. It's deposit-only, there's no route to push a withdrawal back onto a phone bill, cashing out always needs a bank, card or e-wallet. And Payforit, the branded scheme most people still associate with this payment method, was formally retired in 2021; the billing works the same way underneath, just via direct aggregator-to-carrier agreements under Ofcom's current rules.
O2, EE, Vodafone, Three, giffgaff and Tesco Mobile: Casino Deposit Limits Compared
Six networks, six different sets of rules. The table below lines them up together, including the MVNO note that explains why Tesco Mobile and giffgaff, both running on the O2 network, don't behave the same way.
| Network | Charge-to-bill | PAYG credit | Default cap | Where to manage it | MVNO note |
|---|
| O2 | Yes | Yes | Around £30/month charge-to-mobile limit, varies with tenure and spend; separate £0–£200 Spend Cap | My O2 app > Spend Cap; call to raise the charge-to-mobile limit | Host network for Tesco Mobile and giffgaff |
| EE | Yes | Yes | £40 per transaction, £240 per month | My EE > Manage Device > Usage Controls, or call 150 to bar entirely | Not an MVNO, direct network |
| Vodafone | Yes | Yes | £40 per transaction, £240 per billing period (statutory PSR17 ceiling) | My Vodafone app > Manage Bars & Extras > Spend Manager, or call 41156 free | Not an MVNO, direct network |
| Three | Yes | Yes | Typically £5–£30 per transaction inside a £40 daily / £240 monthly ceiling | My3 app > Account > Settings > Spending Caps, or call 333 | Not an MVNO, direct network |
| giffgaff | No | Yes | Not applicable, no charge-to-bill route exists for gambling | Top up PAYG credit in the giffgaff app; nothing to disable | Runs on O2's network but its billing contract excludes gambling aggregators |
| Tesco Mobile | Yes, in principle | Yes | Not independently published; O2/EE-style £40–£240 figures are commonly quoted but unconfirmed, check your account | My Account online, or call 0345 301 4455 (4455 free from a Tesco Mobile phone) | 50:50 Tesco / Virgin Media O2 joint venture on the O2 network, separate billing agreement |
From O2 Casino to Tesco Mobile Casino: Caps, Quirks and How to Manage Each Network
O2
O2 runs two separate limits that get confused constantly. The general Spend Cap in the My O2 app, adjustable from £0 to £200, governs extras and add-ons broadly. Charge-to-mobile specifically, the mechanism casinos use, defaults to around £30 a month on most accounts, though O2 is upfront that the real figure depends on account tenure and typical spend, and the seller can apply a lower limit of its own on top. A deposit rejected well under expectations is usually this quieter limit, not the £200 cap. O2 support can raise it on request. O2 also matters beyond its own customers: it's the host network underneath both Tesco Mobile and giffgaff, which don't inherit its behaviour automatically, see below.
EE
EE applies a flat £40 per transaction and £240 per month to charge-to-bill purchases, gambling included, credit standing allowing. The catch: you can't apply a lower cap to charge-to-bill specifically, the only lever is binary. Barring the 'Call Abroad and Premium Rate' category in My EE (Manage Device > Usage Controls), or calling 150, switches charge-to-bill off entirely rather than down. PAYG customers can't self-serve this by text and need to call.
Vodafone
Vodafone's £40-per-transaction, £240-per-billing-period figures aren't a house rule, they come from the Payment Services Regulations 2017 (PSR17), the statutory ceiling every UK carrier operates under. Vodafone's own control is Spend Manager, in My Vodafone under Manage Bars & Extras, where you can set a monthly limit per handset or drop it to £0. Vodafone itself notes Spend Manager doesn't cover every charge-to-bill purchase type, so £0 is the more reliable test if a full block, not just a lower ceiling, is the goal.
Three
Three's gambling deposits typically land in the £5–£30 range per transaction, inside a broader £40 daily and £240 monthly ceiling across all 3Pay-style charges. Manage it through the My3 app (Account > Settings > Spending Caps) or by calling 333 and asking for a 'premium rate service bar', the phrase Three's own support uses, which blocks premium texts, calls, subscriptions and charge-to-bill together.
giffgaff
giffgaff is the flat no on this list. It runs on O2's infrastructure but its billing contract with O2 doesn't extend charge-to-bill to gambling merchants at all. There's no cap to hit because the route was never provisioned, a phone-bill deposit on giffgaff declines every time. The only working channel through the phone itself is spending down PAYG credit directly, which some casino cashiers still label 'pay by mobile' even though it's a prepaid balance deduction, not a bill charge.
Tesco Mobile
Tesco Mobile is worth extra care. It's a genuine MVNO, a 50:50 Tesco / Virgin Media O2 joint venture (renewed for another ten years in 2024) running on O2's physical network. That shared infrastructure is why plenty of guides assume Tesco Mobile inherits O2's or EE's numbers and quote a £40/£240-style cap as fact. In reality Tesco Mobile hasn't published its own charge-to-mobile spend limit, so treat any specific figure quoted for it as an estimate, and check My Account directly before relying on one. What is confirmed: Tesco Mobile lets you apply a premium-rate bar covering third-party billing through My Account online, or by calling 0345 301 4455 (4455 free from a Tesco Mobile phone). If a 'tesco mobile casino' deposit declines, check that first, then call to confirm the real limit rather than trusting a borrowed O2 figure.
Tesco Mobile Casino vs giffgaff Casino: Why Two MVNOs Behave Differently
Tesco Mobile and giffgaff sit on the same O2 masts and still land in opposite places here, one broadly works, one flatly doesn't. That's the MVNO structure working as designed: a host network like O2 owns the radio infrastructure and core billing platform, while a virtual network leases capacity and negotiates its own, separate terms with the billing aggregators (Boku, Fonix, Siru and others) that actually originate charge-to-bill transactions. Running on O2's masts doesn't oblige an MVNO to plug into O2's gambling-billing agreements. Tesco Mobile has broadly opted in, even without published limits; giffgaff has opted out of gambling specifically. Sky Mobile is a third O2-network MVNO with its own particular mix, different enough to warrant its own full breakdown rather than a row here, see /sky-mobile. The rule: never assume behaviour from host infrastructure alone, check the MVNO's own settings.
Ofcom, Phone-Paid Services and Your Rights on Casino Payments
Regulation of this channel changed hands recently. The Phone-paid Services Authority (PSA) oversaw carrier billing under its own Code of Practice for years; Ofcom formally took over day-to-day regulation on 1 February 2025, retiring the PSA's Code 15 and replacing it with its own PRS Order for controlled premium rate services. Consumer protection principles carried across, but Ofcom is now the body that sets and enforces the rules, and the one to escalate to if a network or aggregator won't resolve a dispute.
Underneath that sits PSR17, the statutory instrument capping what can be charged to a UK mobile bill this way, the £40-per-transaction, £240-per-billing-period figures Vodafone and effectively the other majors apply. Networks can set tighter limits, most do, none can exceed it. Unresolved disputes get free access to an Ofcom-recognised alternative dispute resolution scheme, CISAS or Ombudsman Services: Communications depending on the provider.
Turning Off Casino Charges: The Setting on Every Network
Every network on this page, O2, EE, Vodafone, Three and Tesco Mobile by choice, giffgaff by default, gives you a way to switch the phone-bill gambling channel off entirely, separate from just lowering a cap. That's the one thing all six share despite otherwise inconsistent limits:
- O2: Spend Cap to £0 in My O2, or call to remove charge-to-mobile.
- EE: bar 'Call Abroad and Premium Rate' in My EE, or call 150.
- Vodafone: Spend Manager to £0 in My Vodafone, or call 41156 free.
- Three: request a premium rate service bar via My3 or call 333.
- Tesco Mobile: apply a premium-rate bar via My Account, or call 0345 301 4455.
- giffgaff: nothing to switch off, it was never enabled for gambling.
If gambling itself, not just the payment channel, is the concern, a carrier-level block shouldn't be the only tool. GAMSTOP offers free self-exclusion from UK-licensed sites, typically active within 24 hours. GamCare runs a free, confidential helpline on 0808 8020 133 alongside live chat. BeGambleAware provides independent information and support. None require going through your network, and all work regardless of which payment method you were using.
Declined Casino Deposits: What's Really Going On, Network by Network
Three patterns cover almost every decline on this payment method. Most common: you've hit the carrier's cap, or charge-to-bill was never switched on in the first place, many contracts and most PAYG SIMs ship with it disabled by default, so a first attempt failing is normal, not a fault. Second: business, family and child-linked accounts are frequently blocked from charge-to-bill entirely as account policy, regardless of the primary holder's own settings, a recurring complaint across every network here. Third: someone, possibly you, may already have applied one of the bars above, a decline can simply mean a block is working as intended. For the full deposit walkthrough, including what a casino cashier actually asks for, see /pay-by-phone-bill.
Casino Deposit Declined? First Check by Network
| Network | Most likely cause | What to check first |
|---|
| O2 | Charge-to-mobile limit reached, not the £200 Spend Cap | Charge to Mobile section in the My O2 app, or call to raise it |
| EE | Premium rate category barred | Text UNBAR to 150, or check My EE account settings |
| Vodafone | Spend Manager limit too low or set to £0 | My Vodafone app, Manage Bars & Extras, Spend Manager |
| Three | Premium rate service bar active | My3 app, Spending Caps, or call 333 |
| giffgaff / Tesco Mobile | No charge-to-bill route (giffgaff), or an unconfirmed cap (Tesco Mobile) | Use PAYG credit, or call Tesco Mobile on 0345 301 4455 to check |
EE Casino, Vodafone Casino and Three Pay Casino: Charge-to-Bill vs PAYG Credit
Where both exist on the same network, they behave differently enough to matter. Charge-to-bill defers payment to your next bill, inside whatever cap the network sets, and is the only phone-based option for contract customers on EE, Vodafone, Three and, likely though unconfirmed in detail, Tesco Mobile. PAYG credit deducts immediately from a prepaid balance, sidestepping the gambling-specific cap entirely, limited only by how much credit sits on the SIM. That's the whole mechanism behind giffgaff working at all with no charge-to-bill route: the deduction is a top-up spend, not a bill charge, so the network's gambling limit never applies. For general phone-credit top-up mechanics away from the casino context, see /phone-credit.
On the casino side this shows up as 'Pay by Mobile' or the aggregator's own branding in the cashier, and it's deposit-only everywhere, no network here processes a withdrawal back to a phone bill. Brands carrying it include Videoslots, Mr Vegas and Mega Riches, all under UK Gambling Commission licence 39380, worth checking regardless of which network you're depositing from.
The Bottom Line for Casino Deposits, Network by Network
The carrier decides first. Before a phone-bill deposit reaches the cashier it's already been filtered through an aggregator, then your specific network's own tenure, cap and account-type rules. O2, EE, Vodafone and Three broadly work and are broadly comparable; Tesco Mobile likely works with details worth confirming directly; giffgaff doesn't support charge-to-bill at all, PAYG credit only. Sky Mobile, covered separately at /sky-mobile, is its own case. Check your own account before assuming a decline says anything about the casino, more UK payment-method breakdowns are on the homepage.
· SIRU
