Originally Posted by
jsloan
The online upgrade process doesn't always work properly. If you still see the offer at that price, call United and ask to be transferred to web support. Explain what you're seeing and they should be able to take care of it for you.
Also, if you upgrade to F, you should receive a refund for your E+ purchase after you fly. If it doesn't appear automatically after a couple of days, file for a refund through the website.