If I recall, as I was issued with a "fine" in Corals car park 18 months ago in Hove which I disputed and eventually won, the driver of the car is responsible for paying the fine not the car owner and you do not legally have to tell a private firm who was driving the vehicle. Check out the...
Don't pay. It is not "contractual". They will write 3 times. Dispute the "fine" each time and say it was not stated that you could not park there as a Visitor. Check out the websites about parking fines as there is a distinct difference between the non validity of private parking fines such as...