Originally Posted by
MSPeconomist
HUCA and stress the words mileage upgrade award for 45,000 miles, asking the agent to check for instrument supported upgrade inventory. if the agent again quotes some absurd number of miles, say that's not what you're trying to do and either repeat the question if the phone agent sounds competent or just HUCA, rinse and repeat. It can help if you know to ask to a specific inventory class by letter(s), IIRC it's OY but I haven't done this in 2020.
Haven't seen any changes, so I would also assume it's still OY. Regardless, it's the same inventory bucket that's used for certificate upgrades, in case you need another way to jog their memory/knowledge of what you're asking for.