Thanks for getting back to me. The tickets are both from County Parking Inforcement - an interesting name but definately a private company.

Please help: this is making me feel ill. Visited son to discuss worry over a ticket issued to me as registered keeper when he was visiting hospital with pregnant partner and had to park on grass and dash in(no spaces left). He says we ignore it but I get the letters demanding money. I can prove I was not driving. While there I got another ticket cos it's a 'residence only and display your visitors ticket' area. He has no spare ticket to give me. This makes me feel I can no longer visit him. Will it really all go away if I don't pay up? I don't want his partner opening the door to baliffs one day.