Originally Posted by
pinniped
I get this all the time at both HH and Marriott. I frequently stay at a Marriott where the best available rate is a C-level rate: at check-in, they cheerily tell me I've been upgraded to that floor.
To answer what I think the OP is asking, no, they don't typically upgrade you from the C-level to some sort of kick-a** suite. Unfortunately...

So the reply would be an equally cheerily "Oh, you mean you're refunding the amount I paid to BOOK the C-level rate"??