I pre-paid and reserved a minivan. When I arrived at the Dayton OH Airport Avis location, I was told they didn't have my minivan. I said, I already paid for it $400. They said I could have an SUV (not a minivan) - less cargo space. I said how about a larger SUV - they said they were reserved. LOL. I took the SUV and went on my way because they said I would receive coupons upon my return (in writting). I have yet to be given the coupons after numerous discussions/emails with Avis.