Hi Actually your credit card was not used to pay the hotel. It was used to pay Priceline. Priceline then pays the hotel with one of their cards. That way if you happen to overbid, priceline pockets the difference. So as long as the hotel is ok with it, there should not be a problem. I have done this several times. I have also added names to the reservation so that another person to check-in early. I've even had the reservation switched to a different day once or twice