Hotel points can be anything from a few days to several months. I think my max was about 7 months. Thye just appear after some arbitrary time. The delay is not QF's, but as a result of the hotel chains not doing the transfers regularly. Some hotels seem to store up 3, 4 or even 6 months worth of stays and send them all through at once.

My recent experience has been better than it was 3 or 4 years ago. But QF generally won't look into missing hotel points until the stay is at least three months old. If the hotel receipt has you QF FF number noted on it, just sit back and wait and after about three months send an email including a scanned copy of the receipt to QF FF.