Originally Posted by
rankourabu
however, scamcharges and taxes get recalculated, no?
And neither of those two things ever go down unless its currency exchange
This one is tricky. Officially, they do, and the ticket does get re-issued. But in my experience, I have never been charged anything for the upgrade.
Of course, that said, it's not like I would complain if I were, because at that moment, you're just euphoric you got a business seat. But I'm just sayin'.