I'm about to sign up for Avis Preferred online. It's asking for a credit card number. I usually use one credit card for online use and my other credit card for non-online use. Is it possible to use my "online" credit for my Avis Preferred account and my "non-online" credit card when I make my payment at the counter? I called Avis and got 2 different answers, so now I'm confused. Thanks again.