Why did the casino void my bonus winnings?

The most common reasons are breaching the Maximum Bet limit (usually $5), playing restricted games (like high RTP slots), or failing to complete wagering requirements in time.

Can a casino refuse to pay out if I used a VPN?

Yes. Using a VPN violates the Terms & Conditions of almost all online casinos. It is seen as an attempt to mask your location or create duplicate accounts, leading to instant confiscation of funds.

What is the max bet rule?

The max bet rule states you cannot wager more than a specific amount (typically $5 or €5) per spin while a bonus is active. Exceeding this limit, even once, voids the entire bonus and all associated winnings.

Can I dispute a voided casino win?

Yes. If you believe the term was unfair or applied incorrectly, you can file a complaint with the casino's ADR service (like IBAS) or their licensing body (like the UKGC or MGA).

Why Casinos Void Bonus Winnings: 5 Hidden Rules & How to Appeal (2026)

18 February 2025

4 minutes to read

Spread the word

Mark Taylor Chief Auditor • Updated: January 16, 2026

There is no worse feeling in online gambling: you hit a massive win using a casino bonus, clear the wagering requirements, and go to withdraw—only to receive an email stating your winnings have been voided.

Online casino bonuses seem easy money, but they are strict legal contracts. If you violate a single clause in the “fine print”—even accidentally—the casino has the legal right to confiscate every penny you won. Players often miss these rules until it is too late.

🛡️Editorial Transparency: We independently audit all casinos. We may earn a commission if you visit them through our links. Read our Editorial Policy.

As an auditor, I analyze these Terms & Conditions daily. In this guide, I will explain the specific “traps” casinos use to void payouts, the difference between fair and predatory terms, and how you can protect your balance.

casino bonus wagering requirement explained

TL;DR: The Top 5 Reasons Winnings Are Voided

The “Max Bet” Rule: Betting more than $5 (or 10% of the bonus) in a single spin.
Prohibited Games: Playing high-RTP slots or Live Dealer games while a bonus is active.
Irregular Play: Using strategies like “Opposite Betting” (Red + Black) to clear wagering.
Verification Failure: Details on your ID don’t match your registration info.
Duplicate Accounts: Claiming the same bonus twice from the same IP address.

1. The “Max Bet” Trap (The #1 Killer)

This is the most common reason for voided winnings. When you play with bonus money, you are almost always limited to a maximum bet size—usually $5.00 / €5.00 per spin.

Casinos implement bonus terms to protect themselves from bonus abuse. If you bet $10 and win big, the casino argues that you gained an unfair advantage by risking “their” money at a rate higher than agreed. Their software automatically flags any spin over the limit. Even if you bet $5.10, the entire bonus balance is voided.

2. Playing “Restricted” Games

Not all games are equal. Casinos block you from playing games with a high Return to Player (RTP) or low volatility while a bonus is active. They do this to prevent you from easily clearing the wagering requirements.

Commonly Banned Games:

Jackpot Slots: Like Mega Moolah or Aztec’s Millions.
High RTP Slots: Games with 97%+ RTP (e.g., Blood Suckers, 1429 Uncharted Seas).
Live Dealer: Live casino games are often excluded entirely or contribute 0%.

3. Wagering Requirements & “Sticky” Rules

Wagering requirements determine how much you must bet before the bonus money becomes “real” money. The industry standard is 30x to 40x.

The “Deposit + Bonus” Trick

Be careful. A “30x Wagering” requirement sounds good, but you must check if it applies to just the bonus or the deposit + bonus.

Offer Type	Math ($100 Dep + $100 Bonus)	Total Wager
30x (Bonus Only)	30 x $100	$3,000
30x (Dep + Bonus)	30 x ($100 + $100)	$6,000

As you can see, the second option doubles the amount you have to play, increasing the risk of losing everything.

4. The “Max Cashout” Ceiling

Max cashout limits are one of the sneakiest traps in casino bonuses. You might win big, but if the casino caps bonus wins, they’ll take anything over the limit.

I once claimed a $50 no-deposit bonus and turned it into over $1,500. I couldn’t withdraw my wins because the maximum win was $200. The casino took the rest. Always check the max cashout limit before you claim a bonus. If it’s too low, the offer isn’t worth your time.

Predatory Terms: What is Illegal?

Not all voided winnings are the player’s fault. Sometimes, casinos use unfair terms. Regulators like the UK Gambling Commission (UKGC) and the CMA have ruled against certain practices.

Unfair Terms (You Can Dispute These):

Right to Vary: A casino cannot change the terms of a bonus after you have already opted in.
Vague “Manager Discretion”: Terms that say “Management reserves the right to void winnings for any reason” are generally unenforceable in regulated markets.
Trapping Real Money: In the UK, you must always be allowed to withdraw your real money deposit, even if you forfeit the bonus. They cannot lock your own cash.

How to Appeal a Voided Win

If your winnings were voided unfairly, follow this escalation path:

Gather Proof: Screenshot your game history, the specific T&Cs at the time you played, and your chat logs.
Formal Complaint: Email the casino’s complaints department. Ask for a specific clause number they are relying on.
ADR Service: If they ignore you, contact an Alternative Dispute Resolution service (like IBAS or AskGamblers).
Regulator: If they are licensed (UKGC, MGA), report them to the regulator. If they are offshore, your options are limited to public forums.

FAQs: Bonus Winnings

Can a casino confiscate my deposit too?

In most cases, no. Even if you breach bonus terms, they should refund your original deposit. The only exception is if you committed fraud (e.g., identity theft or money laundering), in which case they may freeze everything.

Why did they void my winnings after I verified my ID?

This is a common frustration. Casinos often wait until the withdrawal stage to check for “Irregular Play” or multi-accounting. They don’t check when you deposit because they want your money; they check when you win to save theirs.

Is using a VPN considered bonus abuse?

Yes. Almost all casinos prohibit masking your IP address. If you use a VPN to claim a bonus from a restricted country, your winnings will be voided instantly.

Verdict

Casinos void winnings not because they are evil, but because they are rigid. The software is designed to catch any deviation from the rules. To win with bonuses, you must be disciplined: bet small (under $5), play only 100% contribution slots, and verify your account early. If you can’t follow the rules perfectly, it is often safer to play with your own cash and skip the bonus entirely.