It takes a few days for the IT system to update and post your points/miles.
However, it has been reported that P&M reward stays do not earn HH points whereas I believe some have received HH point for the cash part. For your information I have stayed at Doubletree Sukhumvit 26 on P&M on 2 occasions and did not recieve any HH points (but they did qualify for stay and nights credit)