Maximum conversion – Even if you manage to meet the wagering requirements, there might be a ‘maximum conversion’ rule in place, which limits how much you can actually win from a bonus.These are generally so high, that you are very likely to lose everything before you meet them, which is what casinos rely on to stay profitable. Wagering requirements – You have to play with bonus money and wager a predetermined amount of money before you can withdraw your winnings from bonus play.Here are some examples of rules commonly associated with bonus play: