Sorry for starting a new thread, but I searched and could not find any input on this situation. We have Flights from Phx to Dubrovnik Croatia with an overnight stop in London both ways in late October/early November. The long haul from Phx to LHR is in WTP. We are fine with that given the cost difference. I want to upgrade for $$ our flights from LGW to DBV to Club Europe. When I made the reservation, the representative told me the only way he could do that was to make it two separate tickets. I said no. He said then the upgrade cost would be 4k as opposed to 400. Is there a way to just upgrade the short-haul flights for the true selling cost or am I out of luck? If yes, do I need to call in and use a secret passcode or specific phrase when I ask? I tried to upgrade online and it gives me the same $4k price and upgrades both the long and short-haul flights. Thank you!