Wow. Things just get worse.
Reading the web site I see:
"My flight departs on or after system conversion*"
AND
"I requested my upgrade prior to system conversion*"
THEN
"Contact United Reservations after system conversion* to provide payment"
Nice.
* The system conversion date is the day the United MileagePlus and Continental OnePass technology systems are converted to a single system. This transition will occur in late in the first quarter of 2012.
You want my money? Give me a call. #fail