I think those that are experiencing this problem on a regular basis should contact WHQ, as it seems to an on-going problem. While I've not experienced it, seeing how others are on a regular basis means it needs to be fixed or they'll lose people as some have stated in this thread & others. Obviously Marriott Rewards can get it credited once they're contacted, but they can't fix the problem. Methinks this one needs to go up the flagpole.

Cheers.