Before the option for withdrawing your welcome bonus winnings becomes available, you must fulfill the applicable wagering requirements, which means putting the bonus sum at stake a certain number of times. Always read the Terms and Conditions, as some bonus types are non-withdrawable – you can only use them for playing various casino games. For instance, if you claim an AUD 20 welcome bonus and end up with AUD 33 after completing the wagering requirements, the AUD 20 may have to remain in your casino account for further wagering, leaving you with only AUD 13 of withdrawable winnings.