Hi,
I am mulling to buy a ticket with a partner in it XXX-DOH-YYY-ZZZ (where the YYY-ZZZ flight is not operated by QR).
I would like to buy it in Y and upgrade the sectors operated by QR, there are avail on all flights but was wondering if the QR glorious IT could prevent me to do so with the last flight.
Any experience on this ?
Thanks