Originally Posted by Kuki
RCI and Celebrity, offer shipboard credits, when you book your next onboard, but you have to specifiy your sailing.
This has changed recently. RCI now allows you to put down a $250pp deposit to be used on any future sailing without picking a specific sailing and you still get the onboard credit. The deposit is non-transferable and has no expiration date. I'm not sure if this goes for celebrity as well, but I suspect if RCI is doing it now, Celebrity is as well.