I posted earlier that I've stopped stressing about timelines for miles posting. I just got finished with the longest I've ever had to wait, and it was still within the stated timelines posted in the FAQs. This one was a "Pay Later" reservation, which was actually handled by Booking.com even though I made the reservation on the same aadvantagehotels.com that I always do. It took 5 weeks from checkout to post, and was backdated as they all are, to the check-in date.
So just another DP saying that in my experience (24 stays in the last 12 months), they always post within the stated timelines, and sometimes sooner.
When will I receive the rewards?
Rewards typically post between 3-4 weeks after your stay is completed with the transaction date reflecting your check-in date. If booked through one of our suppliers that provide “Pay Later” rates (pay upon check-in), the rewards typically post within 4 – 6 weeks after your stay is completed.