Originally Posted by
WiscAZ
Did you book through UA or US? If booked on US you are fine. If booked on UA website it technically is not eligible for an upgrade. I was able to choose a seat that was available at check in but just got lucky one was available.
Purchased through my corporate travel website. They push us to buy UA, since they have a partnership, and it was a bit cheaper. I've done it many times and have had no issues with it in the past.