Kilrath
United States of America#2General Comment
Fri, March 09, 2012
I do agree with what you did but there is actually another possibility. Many hotels require that you have a credit card on file with them and when you file they put a $50 charge on the card and immediately put a hold on it, this is done to ensure that there is money available for them should you take anything from the in room snacks, or drinks, or should any damage happen to the room.
Given the way the people on the phone reacted when you told them that you didn't have a card available at the moment i would tend to agree with you that it might not have been totally legitimate.