Yes, I've had the same experience before. I had LHR-HEL as part of a DONE4 and was trying to change the flight from BA code to AY code (it was AY metal), the surcharges for AY code would have been significantly (>£100) higher than those on BA code so I didn't do it. It's also likely that the ticket would need to be re-issued which would trigger the change fee of $125.
Originally Posted by
JAXBA
I, when I was BA Rates, would have also recalculated the taxes, fees and charges with the carrier change. I wouldn't have charged the change fee, as it wasn't a change in routing.
Noted with many thanks! I'll bear that in mind when booking xonex tickets in the future.