Originally Posted by
zoombee
(e) Might I be getting into trouble by saying I'm using a UK credit card and this somehow being priced out as changing the origin of the fare? AA seem very keen for me to be dealt with by Europe since i'm using a UK card.
They are probably just concerned that the payment will not be accepted.
Changing the sales city changes the base fare, not the taxes (by more than $500 as well I think).
Ask for as detailed a break down as they can manage to be faxed or emailed to you.