A long time ago just a week after reservations opened up with the Marriot and Hilton already filled up, I panicked and quickly reserved rooms under my Dad's credit card because I didn't have a credit card (and I still kind of don't LOL). Of course, I paid my Dad back in cash so I am technically paying for my own room, but after reading a couple threads, I have become aware that not only will I have to present my ID (which I have) but the credit card that the rooms were paid for with (which I don't have because it is my Dad's). I am over 18 so checking is no problem (I'm 19) but I want to know if anyone might have had a similar situation? Is it possible to call the staff and to arrange a way to prove that my Dad is the one paying for the rooms and that it is okay for me to check in without him?