Originally Posted by ung1

Just booked a ticket where the fare conditions said it can be upgraded to a higher fare class provided the conditions of the higher fare have been met. Then called EK to change to a different flight, on which the same fare class is not available. The EK agent said that the fare difference would still be payable. I thought tickets ex-DXB had free changes to any flight. This is a flex fare, and the conditions are the same. So this doesn't make any sense. Anyone care to explain?