Originally Posted by CantTurnRight

Hi, a question about Skywards Miles upgrade Y - to - J:
EK website states that the only cost to upgrade is if a country on the route collects a higher passenger tax for J, than the taxes for Y. (I take this to mean that a higher YQ from EK, for J over Y, will not be charged at time of upgrade)

Is this correct? Does EK not collect the higher YQ upon upgrade from Y - to - J?

Thanks