Originally Posted by
zrs70
I bought a K fare and upgraded with cash to a P fare at the time of booking.
If I sdc, will it go back to K and refund the upfare? Or am I rebooked into P?
You're going to have to call to know for sure because it depends on whether that was an upfare or not (I would be hesitant to try this online or via App). But good chance you lose the upgrade with no refund.