This is a huge scam
I booked a room at hotels.com and the check in date was changed AFTER I submitted payment. I called immediately and was told that this happens, they would fix it, sorry. No mention of any additional charges. After the stay, my card was charged an additional $53. When I called, I was told sorry they cannot do anything because I called AFTER the stay. This is a huge scam. Do NOT USE HOTELS.COM!!