Bonus abuse at a casino explained

What bonus abuse at a casino means in practice

Casinos use ‘bonus abuse’ as a catch-all label for any claim or play that goes against a promotion’s terms. The short glossary entry on bonus abuse gives the definition; this guide looks at what the label covers in real UK terms, how it is applied, and where a casino’s powers stop.

Broadly, the behaviour falls into three kinds. Eligibility abuse is claiming an offer you aren’t entitled to, typically through a second account, someone else’s details or a household that has already claimed. Play abuse is breaking the rules that apply while a bonus is active, such as the maximum stake or the game list. Pattern abuse is playing in a way the terms single out as designed to clear wagering with minimal risk, for example covering both sides of an even-money bet.

The first kind can shade into fraud, especially when another person’s identity or card is involved. The second is very often accidental. The third is where terms are most likely to be vague, and where UK regulators have focused their attention.

Why casinos police bonus abuse so closely

A welcome bonus is priced on the assumption that most players will play normally, lose part of the bonus to the house edge and occasionally come out ahead. If a share of claimants can extract bonus value without that exposure, the offer stops making sense for the operator. Our guide on how online casinos make money explains why bonuses are treated as a marketing cost with a budget.

There is a regulatory reason as well. Duplicate accounts and borrowed identities undermine the age and identity checks that operators must complete before anyone deposits or plays, a requirement in force since 7 May 2019 and covered on our KYC rules page. A system that flags linked accounts for bonus purposes is the same system that helps catch under-18s, self-excluded customers and money laundering.

The 10x wagering cap in force since 19 January 2026 has made bonuses easier to clear legitimately. That reduces the incentive to look for shortcuts, but abuse clauses are still standard in UK terms.

Common bonus abuse patterns in UK casino terms

Terms differ by brand, but the same behaviours appear again and again. The table shows what each looks like and how casinos usually respond.

Only the first three involve doing something most people would recognise as off-limits. The rest are rules of play, which is why reading the max bet rule and game weighting clauses before you start matters more than any other step.

Accidental bonus abuse: how honest players break the terms

Plenty of bonus abuse findings involve players who had no idea they were doing anything wrong. The cause is usually a skimmed clause rather than a hidden one. Take Casumo’s current welcome offer: a 50% match up to £100 with a £5 maximum bet while the bonus is active. On a slot, the legal limit for over-25s is also £5 a spin, so the two line up. On roulette, though, a player who puts £3 on red and £3 on the first column in the same spin has staked £6 in one round, and many terms count the round total rather than each chip.

Other common slips: moving to a live game show that the terms exclude, re-depositing with an e-wallet that the offer doesn’t accept and then claiming a reload, or letting a partner use your device to sign up for the same offer. None of these is fraud, but each can be treated as a breach. The question what happens if I break bonus terms runs through the usual outcomes.

Low-risk and ‘irregular play’ clauses in bonus terms

Pattern clauses target play that keeps the bonus balance almost flat while wagering ticks over. The classic example is equal stakes on red and black on European roulette. Put £10 on each and you stake £20 a spin; you get £20 back on every result except zero, which comes up on about 1 in 37 spins. Over 50 spins that is £1,000 of turnover with an expected cost of about £27, far less variance than ordinary play.

Under the old 35x or 50x regimes, patterns like this were a common way to grind through wagering, so terms banned them. Under the 10x cap the incentive is smaller, but the clauses remain. The difficulty for players is wording. A term that lists specific patterns, such as ‘betting on both red and black’ or ‘covering more than 24 numbers’, is clear. A term that bans ‘irregular play’ with no examples leaves the casino to decide after the event what counts.

The Competition and Markets Authority raised exactly this concern in its 2017 enforcement action, describing ‘potentially unfair rules that restrict certain play strategies’ being used to deny payouts. Its online gambling case page (opens in a new tab) summarises the action and the 2018 undertakings that followed. Those undertakings are covered in more depth on the bonus terms rules page.

Multiple accounts, households and sister brands

Duplicate accounts are the most serious form of bonus abuse because they overlap with identity checks. One person, one account per brand is the norm, and many operators extend the welcome offer limit across all their brands. Coral and Ladbrokes are both run by LC International Limited, part of Entain, so one person may not be able to hold new-customer offers at both; read each brand’s terms. The guide to multiple casino accounts and the question can you have two accounts at the same casino go further.

Households are a grey area. Two adults sharing a flat each have the right to their own account, but a ‘one offer per household’ term may still refuse the second welcome bonus. That is a restriction on the offer, not an accusation. Using another person’s card is different: it breaks payment rules at every UK casino, as explained in can you use someone else’s card at a casino. Masking your location also causes problems; see our page on casino accounts and VPNs.

What happens when a casino flags bonus abuse

Most operators follow a broadly similar sequence, although the exact steps sit in each site’s terms.

1. The account is flagged, often automatically, and withdrawals may be paused while it is reviewed.
2. A risk or compliance team checks the play history, linked devices, payment details and identity documents.
3. The casino decides on an outcome: no action, removal of the bonus and its winnings, or restriction or closure of the account.
4. You receive a message, which should name the term relied on; if it doesn’t, ask for it.
5. Remaining cash, including your own deposit less any losses, is returned to you, unless fraud or a legal reason stops it.

A paused withdrawal during a review is lawful, but the Commission’s consumer guidance says a business should not hold on to your money unnecessarily. Our guides to an account restricted by a casino and can a casino close your account explain your position while a review runs.

UK rules that limit bonus abuse clauses

A casino’s right to enforce bonus terms is real, but it is bounded. Licence code 5.1.1 requires incentive terms to be ‘clear, transparent, and fair and readily accessible’, and the current code text (opens in a new tab) also sets the 10x cap. Consumer law sits underneath: the Commission expects operators to keep their terms within the Consumer Rights Act 2015.

The clearest recent example is the £170,000 fine on Taichi Tech, trading as Fafabet, in July 2025. One problem the Commission identified was a bonus term letting the operator close accounts or forfeit winnings at its own discretion. The Commission’s announcement (opens in a new tab) said licensed operators must make sure their terms are clear, fair and transparent. In practice, a bonus abuse decision should rest on a specific clause you could have read in advance.

Two further protections matter. A casino can’t confiscate your money because you didn’t verify your identity within a time limit, and it can’t make ID a condition of withdrawal if it could have asked earlier. Our explainer can a casino keep your winnings covers where those lines fall.

How to challenge a bonus abuse decision

If you think a finding is wrong, keep it factual and in writing.

1. Ask the casino to name the exact term it relied on and the bets or rounds involved, with round IDs and times.
2. Compare that with the dated copy of the terms you saved when you claimed.
3. Make a formal complaint under the casino’s published complaints procedure, explaining why the term doesn’t apply or isn’t clear.
4. Allow up to eight weeks for a final response; the business must then offer referral to its alternative dispute resolution provider.
5. Take the dispute to that provider, for example IBAS, which is free for consumers.

IBAS explains the process on its how to raise a dispute page (opens in a new tab). Our pages on complaints and ADR and what IBAS is set out time limits and what evidence helps. If the same casino has voided winnings for a different reason, such as a malfunction, the guide to casino voided winnings covers that route.

How to avoid bonus abuse flags as an ordinary player

Nearly every accidental breach can be prevented with a few habits. Our walkthrough on how to read casino bonus terms covers the full process; these are the points that matter most for abuse clauses.

• Open one account per brand, in your own name, with your own payment method.
• Check whether a sister brand counts as the same operator for welcome offers.
• Note the max bet and whether it applies per bet, per spin or per round.
• Stick to the listed eligible games until wagering is complete.
• Avoid betting both sides of an even-money market while a bonus is active.
• Don’t use a VPN or let another person sign up on your device.
• Decline the bonus if the rules don’t suit how you like to play.

Declining is underrated. Playing with cash only means no wagering, no game list and no max bet beyond the legal limits, and nothing for a bonus abuse clause to bite on. More context is in our online casino guides section.

Offers with fewer clauses to trip over

The simplest way to reduce the risk of a breach is to choose offers with fewer release conditions. Coral’s bet £10, get 100 free spins (18+, new players, deposit and stake £10 on slots, spins worth 10p on selected games, accept within 48 hours, valid seven days, no wagering on winnings) has no wagering stage at all, though PayPal, Skrill, Neteller, Paysafe, prepaid and certain debit card deposits don’t qualify. The Coral bonus terms page lists the details.

PlayOJO’s 80 free spins (18+, new UK customers excluding Northern Ireland, first deposit of £10 or more, 10p spins on Big Bass Bonanza, winnings paid as cash) can’t be combined with other offers. Casumo’s 50% match up to £100 (18+, opt-in, £20 minimum deposit, 10x bonus wagering in seven days, £5 max bet) is the one where the play rules in this guide apply most; its welcome bonus terms are worth reading in full. Any bonus is extra play, not income: the house edge applies throughout.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set deposit limits. Free, confidential help: National Gambling Helpline 0808 8020 133.