I had been DM for 4 years before dropping to GO last year (but retain AA EXP). I just finished 2 RT TPAC and should have a total of 1300 in my account. But due to some mileage crediting error, I only got 1195, the rest went to Alaska. Before sorting out the mileage crediting error problem, I asked MPO if it's ok to just grand me DM for only 5 points short. They said I can put in a request, and when my membership year ends, they'd look at it and decide. No guarantee. I don't want to risk it, so I just went ahead and claim back the miles, which was a total hassle!!