I was just on with an AA international award agent. I had to move a date (on a BA flight) which resulted in ~ $500 in extra charges. I had to complain and she kept saying "it is taxes we didn't charge before, now we have to charge these taxes".
I'd try to explain these aren't taxes, they are fuel surcharges and she'd get very very mad. She ranted about how these don't result in any extra income to American Airlines.... I again tried to correct her but wow she got MAD.
In business it is usually illegal to call something a "tax" when it is not a genuine tax. Isn't there a lawyer on this board who is looking for some extra work?
Wouldn't take more than a couple recorded phone calls to make your case