An outside thought---
Can OP confirm that they actually spoke with United? Did OP initiate the original call where the party was upgraded, or was that a received call?
Was the upgrade visible via the United app or website? Or only via an email?
Per the OP, seems like UA has absolutely no record of anything on 3/16, only starting on the 17th when they called UA. Just wondering if this was some sort of phishing scam to gain access to the OP's account and/or PNR and they never actually were speaking with United on the 16th.
Last edited by Maxwell Smart; Mar 21, 2022 at 3:01 pm