Got mail back from Avis that their computer system is "not-mechanized" meaning that they can not see rental contracts from ANC. They refer me to a phone number in ANC. I submitted my request through the ANC Avis website, will see what that brings.
And no, they did not even look at the car when I dropped it off. There were a few very minor scratches that I photographed before driving off just in case. The lady just asked a couple of times if there had been any problems with the car (no).