Firstly when approached the Mid Stay Car Park did not recognise the number plate although all confirmation had been received and payment had been made. When spoke to the help team not only could they not find the number plate but couldn't even track the Booking Ref Number basically told us to take a ticket and potentially on our return from holiday we may have to pay again for the car park - obviously a concern. Eventually they opened the barrier. On our return agin did not recognise number plate or ref number and had to wait while this was looked into before being let out.