Originally Posted by
VA1379
I think you would be out of luck in that situation. You could ask the hotel to reprice your reservation for the lower category room, but they would not owe you anything above that.
Actually, you are entitled to compensation. Difference in rate as a refund plus I think a flat $200 (it's on the Marriott website under platinum benefits).
This happened to me once but I negotiated 20,000 points instead of the $200 or whatever the amount was.