While a Casino Bonus cannot be withdrawn, it can be converted to cash when you complete certain requirements. Any Casino Bonus with a Wager Requirement (e.g. 10xWR) is bound to expire, depending on its wagering period (e.g. Complete 10xWR within 7 days).
Complete a deposit for the amount you want to match, up to the maximum allowed for the offer. Casino Bonus Funds are not withdrawable until you reach the play-through amount completing the offer. Casino Bonus Funds are lost if the offer expires or you choose to forfeit the bonus.