I had the same thing happen to me this morning. We booked a bounce back in January for September. I booked a room and my mom booked a room at FQ for 8 nights. I called today to change my mom's reservation to 4 nights and was also told new rule was just put in place. She did say that she could change it to 5 nights but that the computer would not let her change it to 4 nights. She also said that she could change reservation to POR and do only 4 nights. She said that it was due to FQ being sold out. I understand that we are booked under special offer but when you look on line there is availbility in all room categories. I told her not to make any changes that I would talk with my mom and call back.
Happy99 do you mind sharing what resort you are staying at?
I think I still have the brochure from the room that has the bounce back offer in it. But pretty sure it doesn't say anything about no modifications. I'm going to call back back and ask for supervisor.
We are at Animal Kingdom Lodge