Room was downgraded even though we had booked the ...

Room was downgraded even though we had booked the room well in advance. While it was during the time of a convention and staff was very busy- I felt as though we were treated a little more rudely than necessary. The phone in our room while connected- did not work. I also do not appreciate the staff telling me that they did not have a stairwell (I knew that was a lie) and then come to find out they did in fact have a (hidden) stair case. Probably would not stay there again.