Private companies cannot issue fines.
They can sue for their 'actual' loss.
Considering the parking is free, then how much will that amount to?
Yes. I know all that.
It's the way they can go about it that has changed. In the old days, you could safely ignore the notices. Now and this is the imporatnt bit for you joe - SINCE THE LAW HAS CHANGED, THEY CAN NOW PURSUE THE REGISTERED KEEPER IF YOU DON'T RESPOND.
How hard and fast they pursue the R K is up to the parking co.