Originally Posted by
mattk
Not sorted is now the answer! As the flights are linked/married through to a final destination it's impossible for them to change the first leg. Don't understand it but looks like I'll have to live with it unless anyone else has any ideas.
You're out of luck. MSC (Married-Segment Control) is a very closely watched issue with LH (and QR), and they go ballistics when any outside agent tries to go around the MSC logic.