About 4 years ago I was flying home back to Australia from Norway with BA and Emirates. Checked-in in Norway early and my bags were checked all the way through routing Stavanger-LHR-DUB-Brisbane BUT as I had checked in early, the computer systems could not issue onward boarding cards from LHR DUB-Bris but I was told to pick up my onward boarding cards from the Emirates desk in Term 3 LHR on arrival. Got to LHR and went up to the desk and handed my Qantas FF Gold card over (Emirates and Qantas code share) to retrieve my onward boarding card (Seat 40H held weeks before hand) only to be told by the Dragon behind the desk that my seat had been sold as I was a "No Show". I pointed out that I had checked-in in Norway and seat 40H had been allocated, she still insisted that I was a No Show. I pointed out very clearly that 1) How could I be a No Show when I was Airside and 2) If I was a No Show, why did I have a baggage receipt from Stavanger to Brisbane with BA and Emirates ? She would not budge and slammed to shutters down. Long story short, I had to pay another $289 to change my ticket home later that night then presented Emirates with the bill who refused to pay so took them to the Small Claims court back home and won. I would recommend everyone who knows they are right to do the same, from memory it cost me $23 to lodge the claim but was given back to me when I won the case. Was awarded the $289 + $23 + $2 (original out of pocket claim + court fees + Interest)