I called Cabana Bay about an hour ago because our group had a similar question. They wanted to use the CC on file for check in, but the person the card belongs to gets in 9 hours after everyone else in the room. I was told whoever attempts check in must use their card which is charged immediately, but the charges could be reversed to use a different card later before check out. (I know no one asked about this part) I was also told that the AP must be presented upon check in if booked with the AP rate. All other sources I’ve ever heard said that you could present AP at any point before check out, but whoever I spoke with at CB check in guest services told me today that was inaccurate