Originally Posted by
UAPremierExec
and for those VX flyers - Premium class notifications do not come; so you just need to check the seatmap at either 24/72/120 hours from departure and move yourself, it shouldn't charge you unless you are in a fare that already grants you access (K and higher, I believe).
Well, if you are opted in for a PC upgrade and not seated in an exit row, you should get automatically moved into PC if there are open PC seats
If you are seated in an exit row you will not be moved, but can move yourself starting at your elite window