Did you just check what they were showing you as or did you try removing and re-adding your Mileage Plan number? How were you checking--online or by phone? (If online, I'm not sure of a way to do this, as your AS status appears to only be shown when initially booking the reservation, which is why I'm asking.)

I have a DL flight about two weeks after my MVP-qualifying flight, so I am hoping to be able to qualify for better seating and (I hold out hope) and a chance of an upgrade...