I just got an email reminder for an Avis reservation in a couple of days. When I click on the view reservation link, it says "Rate Code entered is invalid."

I made the reservation in January and am not using any strange AWD. The reservation date and location are on avis.com (but not pricing, etc). I still have the original confirmation email.

I'm concerned if I call they'll find some problem and cancel, so I'm thinking of just showing up with my pieces of paper. It would be a major problem if they don't honor the reservation.

What do you suggest?