There was a lack of information regarding tickets. On arrival I pushed and received a ticket with the wrong registration. I went to the booth and the attendant said I should not have taken a ticket but should have contacted the attendant and that on exit just go to exit and push button for attendant to let me out because all the information for my booking is kept on the sheet. When it came to exit I was told that I need a ticket even if it is the wrong registration, I managed to find the incorrect ticket and got out of the car park. The attendant on the end of the line seemed pissed off and I was pissed off. There is or I saw no clear instruction when booking on the website of the correct process to enter and leave (which should be pretty easy)