Yes, you just take the rewards card to guest services. You can take all or any part of it off the card. However....if you pay in advance on your stateroom account and do not spend as much as you put on in reward points, they cannot give you a cash refund at the end. Thus, you only want to put as much on the account as you know you have charged/will charge. I bought the rainforest pass the first day, and they didn't apply it to the account till the last day (strange). Still, I knew I had charged it, so no problems.