“We paid online in advance. When we entered the car park we took a ticket.
In exiting we put the ticket into the machine and it told us we had to pay!
It was confusing then five minutes later the barrier opened presumably because the system had recognised the car registration.
A large notice board telling pre paid customers would help informing them what to do, or number plate recognition was operating.
It caused unnecessary stress after a long day.
There was no bell to ring for help.”
