Voided bets and palpable errors: what happens and what you can do

Void, cancelled, settled at 1.00: the terms

Bookmakers use different words for the same result: the bet doesn't count and your stake comes back.

• Void, cancelled, annulled. The bet is treated as if it never existed. The stake is returned to your balance.
• Settled at odds of 1.00. Technically the same. In an accumulator the other selections stand and the voided one simply counts as 1.00.
• Re-settled at the correct price. Some terms let the bookmaker keep the bet but pay it at the price it should have had. The bet stands, it just pays less.

Not every void is about a wrong price. Postponed or abandoned matches, a tennis player retiring or a player not starting in a player market are handled by each sport's settlement rules, and bookmakers differ a lot there, especially on tennis retirements.

Palpable errors: what bookmakers' terms allow

Almost every bookmaker has a "palpable error" or "obvious error" clause (bettors say "palp"). It covers a price, line or bet that is so clearly wrong that anyone should have noticed. Typical cases:

• swapped prices: the favourite at 4.50 and the outsider at 1.20;
• a decimal slip: 11.9 instead of 1.19;
• a wrong line: "Over 25.5 goals" instead of "Over 2.5";
• a price not updated after clear news such as an injury or the line-up;
• a bet on an event that had already started or been decided.

The idea exists in law too. In Austria, § 871 ABGB lets a party challenge a contract for mistake if the mistake "must have been obvious" to the other side. The further a price is from the market, the more likely that applies. A price that is only a little better than elsewhere is not an obvious error; it is just a good price.

When a void can be challenged

Bookmakers can't cancel bets at will. These points suggest a void may be open to challenge:

• No basis in the terms. Only rules that applied when the bet was placed count. Unclear or incomprehensible terms are not effective against consumers (in Austria § 6(3) KSchG; the EU Unfair Terms Directive applies across the EU, including Slovakia).
• No obvious deviation. If other bookmakers offered a similar price at the time, it is hard to argue the error was obvious.
• One-sided use. If a bookmaker voids only the winning bets at the allegedly wrong price and keeps the losing ones, that is a strong argument against it.
• A very late void. A clause that allows reversing a bet weeks later, after payout, without reasons may be grossly unfair and void (in Austria § 879(3) ABGB).
• Void because of "betting behaviour". Winning often or comparing prices is not an error in the price. A bookmaker may limit you for future bets, but cancelling an accepted, correctly priced bet for that reason is a different matter.

The flip side: if the price really was obviously wrong, you are normally only entitled to your stake back, not to the winnings.

What happens to the other leg of your sure bet

For a sure bet this is the real damage. The voiding bookmaker returns your stake, but the bet at the other bookmaker stays live. Your arbitrage is now an ordinary single bet at full size. What you can do depends on timing:

• Void before the start: you can cover the open leg at a third bookmaker (next section). The same maths applies when a bet is refused or partly accepted.
• Void during the event: you can only hedge at in-play prices, which may be far from the original ones.
• Void after the event: nothing can be hedged. If the open leg lost, the stake is gone and only a complaint is left.

Hedging after a void: the maths

The full hedge costs about €26 here but removes a swing of more than €300. That is normal: you hedge at the correct, worse price, so hedging costs money. Letting it run is a plain bet with full risk. If you want to do sure betting rather than single bets, hedge, and always keep some balance free at a third bookmaker for exactly this. In ArbVantage, "Odds changed or bet rejected?" in the bet view works this out with the prices available now.

Writing a complaint

Before you write, secure the evidence: screenshots of the bet slip with price, stake and time, the void notice, and if possible other bookmakers' prices at the same time. Then write to customer service by email or contact form, not just in chat.

Keep it factual. Threats or insults weaken your position later.

Regulators and dispute bodies

Where to go depends on the bookmaker's licence, which is shown in its imprint or at the bottom of its website.

• Austrian Land licence. Sports betting in Austria is regulated by the federal states. The Land government that issued the licence (for example Lower Austria or Upper Austria) supervises the operator. It doesn't decide private disputes about a single bet, but it can check whether the operator meets its obligations.
• Malta Gaming Authority (MGA) licence. After the internal complaint, MGA licensees must offer you an alternative dispute resolution (ADR) body; the terms name it. Since 2019 the MGA's Player Support Unit no longer rules on the merits of a dispute, but you can still report an operator through the MGA if you think it acted unlawfully or unfairly.
• Slovak licence. If you bet from Slovakia with an operator licensed there, the gambling regulator ÚRHH (Úrad pre reguláciu hazardných hier) is responsible for supervision.
• Other EU licence. For cross-border consumer disputes, the European Consumer Centre in your country helps free of charge.
• No EU licence. In practice no one will help you. That is a good reason to check the licence before your first deposit; ArbVantage shows a neutral licence flag for every bookmaker.

The last resort is court. For small amounts the effort is often out of proportion; for large ones advice pays. How bookmakers treat winning accounts in general is covered in bookmaker limits; other ways a sure bet can go wrong are in arbitrage betting mistakes.

After a void: the steps in short

1. Check whether the event has started and how much is still open at the other bookmaker.
2. Before the event starts, cover the open leg at a third bookmaker.
3. Save the bet slip, the void notice and screenshots of other bookmakers' prices at the time.
4. Complain to customer service in writing and set a deadline for the reply.
5. If there is no agreement, contact the dispute body or regulator named in the licence.

Frequently asked questions

Can a bookmaker void a bet after accepting it?

Yes, if its terms allow it for obvious errors and the price really was clearly wrong. A void with no basis in the terms, for a price that was only slightly better than elsewhere, or only because of your betting behaviour may be open to challenge.

Do I get my stake back when a bet is voided?

Yes. A voided bet is treated as if it never existed, and the stake is returned to your account. You don't get the winnings at the original price.

What is a palpable error?

A price, line or bet so clearly out of line with the market that the mistake is obvious, such as swapped prices for the favourite and the outsider, a decimal slip or a wrong line. A price that is only a little better than at other bookmakers is not a palpable error.

How long can a bookmaker wait before voiding a bet?

There is no fixed legal deadline, and many terms allow corrections even after settlement. The longer the bookmaker waits and the less obvious the error was, the more open a late void is to challenge. Ask in writing and set a deadline for the reply.

Sources

• RIS: ABGB, §§ 871 (mistake) and 879 (gross disadvantage) (in German)
• RIS: Konsumentenschutzgesetz, § 6(3) (transparency) (in German)
• Council Directive 93/13/EEC on unfair terms in consumer contracts
• Malta Gaming Authority: submitting a player complaint to the Authority or an ADR entity
• Úrad pre reguláciu hazardných hier (ÚRHH), Slovakia (in Slovak)
• European Consumer Centre Austria (in German)

As of October 2026, checked against the linked sources. Not legal, tax or betting advice.

Betting involves risk, even with sure bets: prices move, bets get voided and accounts get limited. Only use money you can do without. Our responsible gambling page lists free help.

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