Hello everyone,

Here is the situation - my wife has a reservation booked on UA's site that is with ANA and has UA's codeshare 4 digit number. She wants to use Pluspoints to upgrade it to business and I did read on this forum that it takes 40 points and can be done only if in the reservation there is narive AHA's number.

At this moment she is at SFO waiting for her outgoing flight to ICN (the return flight is with ANA several weeks later). She went to UA's service desk at T3 and:
- They told her that service desk does not handle such requests
- They gave her a card with QR code to scan to speak with agent
- The agent told her that changing reservation number to ANA's number is not possible.

What can be done now, if any and what would be the most efficient way to do this?