Woolf,
I think you wrote them too early and should have waited a little bit longer for a challenge. Even though this year there has not been that many promotions usually US throws out a few promotions toward the end of the year to help people like yourself to re-qualify.
This year should have been still pretty easy to re-qualify when they had that 20,000 anniversary promotion X2.
I am not sure if you can call the DMSC and ask them to cancel the re-qualification or not. Maybe they can and give you the re qualification promotion during your traveling period. It is worth a shot. Did you try to Fax Carol Blazer?
How many segments do you have or will you have? You might have to do some MR's this fall like I did last fall to cross over. Last year there were quite a few sale fares DIRT CHEAP that many people here on FT took advantage of so you might have to do one of those.