Anyone else get this offer from UA today? I am a 1K. Receive up to 50K RDMs when flying between Dec 1 and Feb 29. 6K miles per segment for premium fare classes/3K on E fares on long segments; or 3K miles per segment for premium/1K per segment for E fares on short segments. Except... when I went to register, I received an error that my MP number isn't eligible. Huh? I'm only clicking the box because MP sent it to me! Otherwise, how would I get to the box in which to click? The kicker: my MP number (that the system rejected) and name are at the top of the email.