I did call DL. As I had started travel, they couldn't remove and replace my FF#. Nor could the manually process an upgrade. This is really quite sad -- the agent could see AND TELL ME the date my GM status became PM. Yet, despite the seat availability, could not get the upgrade via DL. She ultimately did it via NW site.
There really is no excuse for this. I can (barely) see not allowing a change to FF#, so that you're not subing programs. But that the agent themselves can't do the upgrade you're entitled to by program norms? There is no excuse for that.
Dave