A promo code is a short string that attaches an existing offer to an account. That is the entire mechanism, and most confusion about codes comes from expecting more: a code creates no value; it picks a campaign that already exists and applies its terms to you.
Where a code is entered
There are two moments when a code can be entered, and they are not interchangeable. The first is at registration, in a field next to the account details — that is where a code tied to a sign-up campaign belongs, and it cannot be added after the account exists. The second is at the cashier or on the promotions page, where a code tied to a deposit or to a running campaign is applied before the deposit is confirmed.
A sign-up code entered at the cashier does nothing, and a deposit code entered during registration does nothing. When a code is refused, the first thing to check is not whether it expired but whether it is being entered in the right place.
What a code can change
- Which of the welcome offers the account ends up on.
- Whether a deposit brings a match or a package of spins.
- The size of an offer that would otherwise arrive at the standard rate.
- Entry to a campaign that is not advertised on the public promotions page.
And what it cannot touch: the turnover condition on the offer, the maximum stake, the expiry window, or the rule that one account takes one welcome offer. Those belong to the campaign rather than to the code, and no code lifts them.
Why a code does not go through
- The wrong field. The commonest one, and it looks identical to an expired code from the outside.
- Expired. Campaigns have end dates, and a code posted on a forum in March is usually one that ended in March.
- Already used. Most codes are one per account, and some are one per person, household or device.
- Not meant for this account. A code written for new registrations will not attach to an account that already exists, whatever else is true of it.
- Conditions not met when it is entered. A code tied to a minimum deposit is refused below that figure, and the message rarely explains that.
Codes and the welcome choice
An account takes one welcome offer, and that is covered in the welcome bonus guide. A code entered at registration can decide which one it is. It cannot add a second, and it cannot reopen the choice once the first has been credited — so a code found a week later has nothing left to attach itself to.
Sources, by reliability
Three places, in descending order of reliability: the operator's own promotions page and mailings; a partner site running an agreed campaign, which most published codes are; and everything else. Codes scraped onto aggregator pages are often dead, sometimes never existed, and are never worth an email address. No page here asks for payment or for account credentials in exchange for a code, and any page that does is not connected to Rizk.
The terms are the offer
A code is a pointer; the offer is in the terms. Before entering one, three things are worth knowing: the turnover multiplier on whatever it credits, the stake cap while it runs, and the deadline. The wagering guide explains what each of those costs. If the terms behind a code are published nowhere you can read them first, it is not an offer but an advertisement.
Used properly a code is worth a few minutes of attention and no more than that. It changes which promotion you are on, not how anything on the site is priced. The campaigns running now, and their codes where they exist, are on the bonuses hub.