National express is completely unreliable, travelling to Stansted Airport from any part of London with them has become just IMPOSSIBLE. Their coaches either don't show on time or they don't show up at all. Hundreds of passengers are missing their flights because of National Express disservice, many of those who making to the airport on time have no other choice but just change their route, catch a train or a taxi. National express management should inform their customers if they are still present in the market or not. If their business is not profitable anymore they should just file bankruptcy and move on. And they should stop waste public money for such an appalling service