Regarding requests for buildings not being met, sometimes it's for a good reason - and I'd hope that when you go to the front desk to ask to be moved, they explain why.
This happened to me at All Stars Music once. I'd requested the Broadway section. I'd gotten the room not ready text, but I went to the front desk just to make sure my MagicBand was linked correctly (my previous stay at the Poly rather than a room number I got a "see the front desk" message that freaked me out but it was that my MagicBand wasn't linked so now I go to check before I do anything else). The cast member checked and it was fine. Then she said "I see there's a request on your reservation for Broadway, but we put you in Rock because there is a group taking up all but a few rooms in Broadway and we thought you wouldn't want to deal with that. I can move you into one of them if you prefer." I opted to stay in Rock - seeing the group around the resort was enough to know they made the right decision. (No, it wasn't a SATG.)