Originally Posted by
Dave Noble
If this is a US trip, I would write to the DOT with a copy of that email and highlighting tha the airline is claiming that there is additional tax due - the airline is in breach of DOT rules in claiming surcharges as being taxes
Not only a violation of DOT rules, but creates civil liability for the next lawsuit against a European carrier for marketing its tickets with carrier surcharges denominated as taxes.
Get yourself the receipt first so you can see first-hand what BA has done and then proceed.