Hi
We booked ComfortFlex JTR > ATH on an early flight. I'd like to change to a later flight on the same day.
When we booked there was a small circled i with information that we could change on the same day without charge or fare difference.
But if I go in to make a change to the booking it wasn't the fare difference.
Also on all the info on the Aegean site it says it's free but you have to pay the fare difference.

Does anyone know how to get the "without charge or fare difference" offer?

Thank you very much.