My "usual" experience is also as noted above, i.e. 2 days for stays to post (for the record, IHG also takes as much, Hilton normally posts in 1 day). When you go to submit a missing stay request online, it tells you it "may" take "up to" 10 business days after checking out for stays to post, but this is not hardcoded in the form (i.e. you can submit a claim also earlier, just remember you must have and attach a copy of your invoice). If you are in a rush, you would be better off contacting the hotel directly first, to make sure they have forwarded the stay data to Bonvoy (I have had cases where missing stays were credited a couple of hours after contacting the hotels).