Short version of long story, my GF booked a non-refundable room in Wash DC area to spend President's Day weekend with her daughter who would be there interviewing for a government job. Government agency then decided to send the interviewers to the daughter's location instead, leaving my GF with the pre-paid room and her daughter won't be there.

She knew it was pre-paid, and isn't blaming Marriott at all (it was apparently significantly cheaper because it was pre-paid), and may go anyway since it's paid for, but she's having to use some vacation time, and so due to this trip we put off our normal spring vacation (and it's tough for me to go to DC then, so my loss too sort of ).

It's not like someone died, and not the end of the world, but still annoying. I told her to at least try calling Marriott to ask. It appears that the rates now are quite a bit higher than what she paid, so they could probably re-rent the room but I have no idea how iron-clad these are, and I'm just wondering whether anyone has had any success in getting them undone.