Originally Posted by
imverge
Contact your credit card company and proceed with a charge back. Let them know that you never took that flight and never authorized AC to charge your card. You should also let them know that you have tried dealing with AC but that they have not been able to justify the charge.
That is a good idea ... I have had success with my ccard companies in this respect (have not had to do it with AC however, but it should be the same).
Good luck!