To clarify: A wagering requirement is a bonus rule that is specific to the withdrawal of winnings that have been obtained from the bonus money. The average wagering requirement works on a cost basis. It is a multiplier of the bonus's worth. If, for example, you claim $100, and the wagering requirement is 30x the bonus, you will need to deposit and play $3,000 before your initial bonus winnings can be released. The newer casinos online, still maintain this rule but have more sensible levels in terms of the play-through amount.