Thanks to all, I guess I am a little gun ho and need some reining in now and then. I'll take your advice and let you know the outcome!

A family member borrowed my car last week and parked in Lidl. The shopping bill came to £133.55. I've got the receipt.I'm not in the mood to appeal, send the receipt or provide details of who the driver was.I'm thinking of:1/ Writing to them stating: This is not an appeal but a statement of fact that I won't pay them a penny or divulge who the driver was as I don't believe their speculative invoice represents any realistic loss to the retailer (Lidl) given the amount spent in their store. 2/ Going on the attack and serving them with a 'Subject Access Request' under the Data Protection Act. Requesting all data (including CCTV and any information as received from the DVLA ............. Just to give some attitude!!! back 3/ I've researched the companies House site and have the names of the directors including their email contacts. I'll copy them in along with any Lidl contacts I can muster.4/ Invoicing them (say £1000) for my time in responding and stating that I want compensation for the many sleepless nights suffered due to the bogus notice and my age related blood pressure.What'ya think?