This guide is general information about how the UK online casino industry works and is provided for educational purposes only. It is not advice, and it may not reflect the specific offers, promotions or terms available at Fortune Games. Promotional terms vary between operators and change over time, so always read the current terms and conditions on site before taking part. 18+.

What Are Casino Bonus Codes?

A bonus code is a short string of letters or numbers that unlocks a particular offer when entered at the right point. Codes let an operator attach an offer to a specific campaign or audience, so the same site can run different promotions side by side. Many offers apply automatically without a code; where a code is needed, it is usually stated in the promotion’s terms.

Where you enter a code

Codes are typically entered during registration, in the cashier when making a deposit, or in a dedicated promotions box in your account. Some are case-sensitive, so it is worth copying them exactly as shown. A code generally has to be entered before or at the moment the qualifying action takes place – applying it after a deposit has been made often will not work.

Why a code might not work

Common reasons include the code having expired, the offer being limited to new customers, a previous offer already being active on the account, the deposit method being excluded, or a minimum deposit not being met. Most offers are also one per customer, household or device. If a valid code is rejected, the terms usually explain the eligibility conditions.

Bonus codes and the current UK rules

The code is only a key; the offer behind it must follow UK rules. Since 19 January 2026, any wagering attached is capped at ten times the bonus amount, the offer can only apply to a single product type, and the operator cannot reduce or change the bonus once you have met its conditions. A code does not exempt an offer from any of these protections.

Reading the terms behind the code

The value of an offer is in its terms, not its code. Before using one, check the wagering requirement, the minimum deposit, the time limit to meet conditions, which games count towards wagering, and any maximum bet while a bonus is active. A code with attractive headline numbers can still carry conditions that make it a poor fit for how you play.

Frequently asked questions

Do I always need a bonus code to get an offer?

No. Many promotions apply automatically once you meet the conditions. A code is only required when the terms say so, often to tie an offer to a specific campaign.

Why was my bonus code rejected?

Usually because it has expired, the offer is new-customer only, a minimum deposit was not met, your payment method is excluded, or you already have an active offer. The terms list the conditions.

Does a bonus code change the wagering requirement?

No. The code only unlocks the offer. Whatever wagering applies is set by the promotion and, since January 2026, cannot exceed ten times the bonus amount.

18+. Please gamble responsibly. Gambling should be entertainment, not a way to make money, and you should only stake what you can afford to lose. For free, confidential support, contact the National Gambling Helpline on 0808 8020 133 (run by GamCare, free and open 24/7) or visit BeGambleAware.org. If you want to take a break, GAMSTOP lets you self-exclude from UK-licensed online gambling sites free of charge (begambleaware.org · gamstop.co.uk). Fortune Games operates under UK Gambling Commission licence 39175.

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