I was to stay at the Rennaisance Bedford, MA and then thanks to this board found it was going change from Marriott. I canceled the reservations 10 days before the switchover for a stay 1 month later (August 28th), but was still charged for the room. I have called customer service and they see the reservation and cancelation, but said they said they need to get back to me (3-5 business days) as they are not sure what to do. My guess is that Marriott either never sent the cancelation to the new owners or they chose to ignore it.

Anyway a word of warning keep cancelations notices for weird situations. Glad I had it.

I hope this does not take too much of my time.