Originally Posted by
Tseta
The agent told me, however, that if the other upgrade does not clear, I could always cancel the first one and go back to the Y exit row seats.
This does not sound correct. For both, going back to Y and the exit row seats.
As example, if all exit row are taken, who should be kicked out for you?
In addition I would always upgrade the lowest status pax first in such a case to maximize the chance to upgrade both.