Not really sure where to post this data point. My Marriott Rewards account balance has been 51,448 since the combining of SPG-Marriott. I just noticed that the posting of my credit card points + bonus points which was a total of 16,156 points (detail shows in my activity section of my account). Now, my balance is showing as 65,292. Apparently, Marriott does not know how to add - or they decided that I actually should not be receiving all my points and reduced my balance by 2,312 points - no explanation. I'm not even sure how I can dispute the loss of 2,312 because I did not take a screen shot of my previous balance!
I've already decided to move to a different hotel program, as I just can't trust Marriott any longer. I'm just hoping to make it out before my balance shows zero - without any of my current points being used. Sigh...