Originally Posted by
Calchas
I agree that the way the whole advert is structured is a bit misleading if you are not familiar with the way it works.
I'm reasonably sure that the First ticket you end up with if you take part in this offer is not flexible. So you trade in your fully-flex J ticket - which you prize so dearly - for an inflexible First one.
Granted your unupgraded sector still remains flexible, but the First portion is fixed.
So... just buy the discounted fare.