You don't call either. You keep waiting. It often takes about a month!

Multiple reports of it often taking that long here (Avis promo thread in Club Carlson forum):

http://www.flyertalk.com/forum/club-...er-2012-a.html

You have to understand that delays in posting aren't because someone consistently counts x weeks to do it. They're usually because something that's done on a schedule is done only once every month or whatever. So depending on when you rental is compared to their infrequent posting schedule, it may take a shorter time or a longer time to post. (And there may be multiple steps, one done once a week in one spot, followed by one done once or twice a month in another spot.)