Originally Posted by plunet

I agree that it will be BA that will probably reunite the bag with the passenger as the last carrier to have handled the bag, but surely QR are responsible (which is what the OP asked) They took responsibility for the bag at check in, and it is their tag on the bag. If the OP has to claim for missing or damaged ppbaggage that surely would be a claim to QR (and QR would be responsible for the claim and either take the claim on the chin, or attempt to claim those costs from BA)...

I am genuinely interested in understanding the right answer. But also hope the OP is reunited with their bags. For BA to turn around and say QR should not have checked through was just plain wrong.