I booked on the 6am bus to Stansted, got there 15 minutes early in order to make my bus on time. Clearly the bus was over booked. There was only 1 seat left, however at least 10 customers with tickets and one customer with a ticket for the 05.30 bus, which they missed - this person was given the seat. This meant all other customers who had made it on time for 06.00 bus were left standing and had to wait 30minutes for the next bus to come. Really not happy with this service considering I had prebooked my bus ticket 2 weeks prior. Would not recommend this service to anyone if they actually want to make their flight from Stansted on time!! I hope in the future the correct number of seats will be allocated for passengers.