You have to retrieve your reservation (there's a link at the top of the page) before you enter any dates for CRT, HDDR, or any others that require a CC for a hold. If you find your dates/times, and then retrieve it won't do it. You'll have to get completely out & remove that ADR from your cart first. It happened to me when I booked HDDR. Once I removed the ADR, then retrieved my reservation (regular resort reservation), it showed a $0.00 charge instead of the full amount.