I was on Jade last month and purchased 4 CNC for a total of $1000.00. Was credited $500.00 on my on-board account, so only cost us $500.00. We booked our next cruise at the time we bought CNC, and they used $500.00 (2 CNC) as a deposit for our balcony (BA category) cabin. We were told by the cruise next consultant that the deposits no longer expire and that you can use 2 on balcony or higher.