Well, that's a bummer, because I didn't. Not only that, but after crossing the 75,000 mile mark I didn't receive an email, either. I called Mileage plus, who transfered me to tech support, who transfered me to reservations, who is in the process of transferring me back to Mileage plus. The phone call has lasted well over an hour with very long hold times at each step.

Any suggestions on how to get this straightened out? I know I registered for the promotion because I got an email at 35,000 miles, and when I try to register again it tells me I'm already registered.