We thought we had booked a great deal but when our flight was unexpectedly delayed by 6 hours we were charged almost half as much again to leave the car park. There were a few people in the same situation and we got varying degrees of help when queried with the staff. One supervisor lady managed to get one customers fee reduced down to a third, unfortunately the chap dealing with me could not do the same process. Very disappointing, thought that using the flight number to book the air park may have made allowance for airline delays. Please be aware that excess charges can be made if your flight is delayed.