Yep, I'm one of those "many" caught up in the "week that wasn't". I too called HHonors, received the same information that they simply posted what UA sent them, and that I should talk with UA. I called UA and they also said they were on it (the missing week), and the miles/points should post soon. So far I haven't seen them. I'll give them a little while longer, though.
Related question: A friend who was not aware of the program but who was/is a Mileage Plus and HHonors member and took flights on United in September and October is now registering for the "mileage plus nghts" program. Anyone know whether the program will give retroactive credit for the flights flown before sign-up? If so, what needs to be done? Has anyone succeeded?