I've rarely used an AWD # other than my own corporate AWD since I mostly travel for work. I've used a different AWD # less than a hand ful of times previously mostly for vacations but the last time was year ago.

Anyway, I decided to use one of the AWD #'s on this post to save my company about $50 on a 2 day rental. I get on the AVIS shuttle and they don't have me on the Preferred List. I thought this was odd but then realized that I didn't see my reservation in my reservation list on AVIS.com

I wait at the Preferred counter where there is a line and it is late. I called the AVIS Preferred # while I wait on line and ask about my reservation. I am told that my Wizard # is not on the reservation and she asks if I want to add it. I say "sure". She tells me that if she does add my Wizard #, the rate goes up considerably. She asks if I still want to add my Wizard # and I tell her no. She tells me she will leave the reservation as is. I then realize that changing my AWD # has negated my Wizard # and my Preferred Status.

I hand over my Drivers license and Credit Card at the counter and I get my car (no upgrade). It took some additional time but I tell myself that I am saving my company some money.

I just returned the car to AVIS and my corporate AWD is on the invoice and my rate is $50 higher than my reservation rate. Basically, my own AWD corporate rate was applied.

Did my credit card on file trigger my corporate AWD #? Why didn't the changed AWD "stick" on this reservation?