A little tip folks, THAT WORKS! try to travel with your laptop, when facing the nazi's at the desk ,waiting, waiting, waiting to get on, have laptop open on top of trolley, examine laptop with great concentration, THEY KNOW what you are looking at, exactly the same thing they are looking at, available seats, they also know that when there is at least 30 seats available, no football team is about to materialize, and there is no excuse to give you 5 mins to board, try it. After a very stressful wait in SIN, I tried it, after advice from a retired LAME who was also hoping to get to LHR and it worked. Never travelled without it after that and has never let me down. It also clarifies if there really is no seats, as happens every so often, and you don't go away to try tomorrow, feeling a little cheated, and not too sure if they were simply being vindictive.