When I initially booked, I had the tickets in front of me. My return time should have been around 2.30pm, so I had put 4pm to give some flexibility. However, somehow the time on my ticket on my return showed as 0400. I wouldn't have done that, as the airport obviously is not open then, and I would have put the correct time in. I checked the times before leaving, but didn't spot that. I thought everything was fine until my return, when I could not drive out of the car park without paying an extra £50!!!! That is not anything but overt ROBBERY. My main gripe is that there is no contact telephone number on the ticket, no person in an office anywhere, and no contact number anywhere. You are hiding behind anonymity, when all I wanted to do was pay the percentage extra because I made a genuine difficult-to-spot mistake. Glasgow, here I come. My booking ref was 3961584.