The wagering requirement (also called playthrough or rollover) is the most vital part of any bonus. Mechanically, it is a multiplier that determines how many times you must bet your funds before they convert into withdrawable cash. Without this rule, players could claim a bonus and withdraw it immediately without playing, which is not sustainable for the operator.
There are two common types of wagering structures. In a Bonus-Only requirement, only the bonus amount is multiplied. In a Deposit + Bonus requirement, both your initial deposit and the bonus are combined and multiplied, resulting in a higher total amount to be wagered.
As you place bets, the system tracks your total turnover. Once the required amount is reached, the remaining bonus funds are released into your cash wallet. To find the exact multiplier for any offer, check the "Terms" link located directly beside the promotion in your account manager.