Booked a hotel (more than 24 hours ago) at a Marriott in Michigan. By accident I selected the advance purchase offer, which means my credit card is charged up front. Now I don't think I can make it. Called MR and they said its up to the hotel if they'll let me cancel and they will email me within 3 - 5 business days.

Do hotels normally let you cancel or did I loss out here? My wife is gold and that was put in the note to the hotel.