Booked this online and immediately realised i had entered the incorrect departure time, cheking in at 07.00am and out at 08.00am instead of 08.00pm. I contacted the parking line and spoke to a men who said this would be no issue"we all make mistakes, i can see whats happened there will be no problem when you come to leave". However when trying to leave the car park on the depature day I was advised i would need to pay an additional £30.00 to exit the car park, despite showing the online booking form and explaining the situation, the car park staff were not helpful in the slightest and not interested in providing any form of customer service other than gaining more money from me. I then spent over 30 mins the next day between 9.55 -10.30am trying to contact someone at Southampton Airport parking by telephone and after @ 4-5 mins each time the line was cut off before anyone had answered. Dreadful service would not recommend at all. I am still waiting for someone to contact me online after putting a complaint in email.