YMMV. I'd been told the same thing (not having to move rooms with linked reservations) but had it come back to bite me at VGC. We'd gotten a extra day at the end of our trip via waitlist, and when I'd called in to Member Services prior to the trip, they'd linked the reservation and reassured me that we wouldn't have to move rooms. Got told the same thing at check-in. That morning rolls around, and the front desk tells us that, nope, we need to move rooms. Appealed to a manager and even called in to the member services line, nope, nothing they can do. Considering we had a baby and a special needs kid that required us to arrange the room a certain way, it was a big hassle and we lost the entire morning of our "extra" day to moving rooms.