Originally Posted by
canadavid
I was more thinking for the airline about doing something to remove the « fully flexible » part of this fare and turn it in « fly it or cancel ».
Not charging anything in case you fly what you have booked.
Changeing the fare rules isn't easier than charging the missing amount. If they would change any ticket rule after purchase this was a criminal fraud - I doubt Airlines like AF/KL/DL would do!