Can anyone assure me I haven't misunderstood this ticket? I've now been on eight long calls with BA, and they're refusing to make the amendments I'd like, although I suspect it's just through lack of understanding. The long calls are always with front-line staff who have no idea what I'm talking about and are sending messages to the "pricing team" which may be completely wrong, for all I know.

Here's where I'm at: I've flown LHR – via Doha – Australia – North America, where my ticket has reached currently. I have so far made 7 flights, 2 of them in North America. I have a flight back to LHR booked for the summer, within a year of my first flight. That would be leg no.8 as it stands. However, now I wish to add in 4 more flights in North America before flying home. I'm aware of all the rules about the maximum number of flights in North America, the coast-to-coast limits, etc. The problem is not about the technicalities of the rules, they're simply saying "adding more flights isn't possible". But surely it is possible?