This is a common problem that customers have, they struggle to calculate the wagering requirements for a bonus and then when they claim a promotion, they struggle to withdraw the winnings because of the wagering requirements. Let us look at a bonus where there are 50 spins up for grabs. You manage to win £20 from the bonus and then you have to abide by the 30x wagering requirements. In order to calculate how much, you have to wager, you will need to do the following calculation: £20 x 30 = £600. This means that you will need to wager £600 on a slot game in order to withdraw the winnings.