it just seems odd that nobody had the same experience as you
perhaps you didnt realize to hit the 'save' button after making the change
Oh, you have to hit save? I thought I need to click the back button...
The changes reflected online, but not on the rentals.
I chapped later that once you rent in a certain country, they store you wizard, and not because you update on avis.com that the profile in that country gets updated.
So far that was the only plausible explanation I got.