I am changing my aerlingus flight dates to next year. When changing flights with aerlingus they ask for card details. This is for the difference in flight costs im aware. However when giving the card details it asks you to agree to the bank debiting full cost of flights and not a difference. Im afraid if i go ahead they will deduct full amount & then I'll have major hassle getting funds returned! The difference for me is actually a minus which i understand i will lose. Has anyone here gone through the process of changing flights and may be able to advise. Thanks