I've seen two types of dollar off coupon for Avis, one does not indicate any AWD number, while the other is said to be stacked with a specific AWD number, for example I found this AWD# Q339400 CPN# MUWA221 which is said to give you 25% off plus $30 off. And there's another $30 off coupon along with Sears AWD and in the T&C it says you even have to pay with sears card.

My question is if this cpn code work alone by giving $30 off or it only works with the specific AWD number. I tried to use another AWD with better rate, and then when I filled in the two coupon codes I mentioned above, the system took it showed as "accepted". Bad thing about Avis online system is you never know if the coupon is working as it suppose to do until you return the car

Anyway, does anyone have experience on this issue. I asked because I could not find any $30 off (or more) without AWD restriction for rentals at local lots. There is a $35 off non-restriction cpn for airport locations though. Thanks.