Originally Posted by
LondonElite
I can't tell you whether or not this is possible (itself an open-ended question with BA's IT systems) but I'm nearly 100% confident that it will not be changed for you. Sorry.
Got it done by BA twice in the last few months. Was intended to be credited to QR, BA removed the miles, I sent e-mail confirmation to QR, and subsequently received the QR miles.
It can be done and it was not difficult for me.