In addition to Mema's explanation above, without know how far out your cruise is, the web site won't show you all the truly available cabins in any category. There will be TA holds which may be returned about 45-60 days out plus, I've never seen the RCI web site show you more than about 10 cabins as available. If it's showing none available, I would be very skeptical at this point. We got an RU offer for all the suite categories but in checking availability on the web site, only one of the five suite categories were showing available but yet we could bid on all five.