Originally Posted by
jbalmuth
If you previously were routed to Brazil but are now ticketeting to fly to Argentina instead, it's absolutely crazy that AY would assert that your prepaid Brazilian embarkation tax is non-refundable, and that they are somehow entitled to pocket that prepaid government tax, while now charging you fully (extra) for the Argentina customs and immigration tax.
I have similar issues with AA once in a while. A stopover in London became a transit by adding a second ticket and AA refuses to refund the APD even so there was no APD due.