THEY SOLD SEATS TO SOMEONE ELSE!! Travelled as 6 people on 21/09. Stuck at stansted airport even when we booked and paid 3 weeks in advance, the national express sold our seat to someone else who paid in cash! We were already in the queue waiting before the coach arrived. They did not take the register and just sold tickets on the spot, first come first serve basis. We were just left at the front of the queue. As a result of their fault in the delay, we missed our connecting train and had to pay expensive tickets home. No apology from the staff who was selling the tickets. Big disappointment! Will not recommend!! Clearly the staff was too keen to finish her shift and didnt even bother to check with who has already booked in advance on online before selling these seats. On their website, they said they will release any seats one minute prior to departure, but we were already in the queue 15 minutes earlier!! Strongly advise you to beware that even through you have booked and paid in advance with national express, arrived on time or earlier, they may still sell your seats to someone else