Originally Posted by
englisha
I have a booking from Sofia-Madrid-Miami-London and the 1st leg is booked on an IB code, but operated by Bulgarian air. Id like to credit the 2nd and 3rd legs to BA for the TP's and double miles, but understand i'd get nothing on the first flight on BAEC, so thought I could credit this leg to my IB+ account. Is this even possible to do?
You could retroclaim the segments after your trip.
You could ask at the lounge before each flight to change the FQTV number as appropriate.