I had a room only reservation for this Christmas, and wanted to add dining and park tickets, the first person I talked too said I had to cancel my original reservation and book a new one with complete package, which the resort I was booked at wasn't available for rebooking. I have back to back reservations because of a season change midway thru stay. I called back and that person told me I could change my room only reservation to a package with tickets and dining. She had to put me on hold for about 30 minutes to get everything straighten out, but I was able to keep the reservation at same resort that I had originally booked with the added park tickets and dining. The second park of my reservation is at the same resort. I didn't want to do a split stay. We tried that last year. It went very smooth, but we just like staying in one place at a time.