It must be satisfying seeing the results of your sanding capers though, well worth doing in the long run.
I got a f*cking Parking Charge Notice on Sunday from one of these Private Contractors on Private Land
The scene: Public Car Park behind some food shops and shared with a large modern Church type thing, most of the public spaces were taken up because: Mothers Day.
One large section of Car Park is 'reserved' for an Office Building so the poxy twats who work there can park their PCP Financed modern sh*t DURING WORK HOURS. This was Sunday Morning

we needed to park for Maximum 8 minutes to dive into a shop for essentially ONE THING......came out to see a tattooed, ear-ringed, nose-ringed knobber gleefully sticking the PCN onto the windscreen with me approaching and protesting. "I've issued it now, can't retract it" and all that sh*t. A few words were exchanged and he slithered back into his shitty little car and f*cked off.
Mrs_Welly HATES this sort of thing and became upset, cue a mostly ruined day (my Lads Birthday also). I was wrong to park there but got so fired up about the arseholes behind this sort of practice I began some online investigations and found a lot of information to help appeal against these Private Firms using requests for information that they cannot (or will not be able to) provide. I had to research which 'association' they claim to be a member of and then I can pen my complaint appropriately which is what I'll be doing tonight.
About 4 hours was spent reading up about these twats and how to deal with them. There demand* is that you pay £60.00 within 14 days or it rises to £100.00. If you submit an appeal they have 21 days to respond but their response does not extend the entitlement to the 14 day discount WTAF? they're basically threatening you to pay up. If I lose this claim I will get £100.00 changed into 2-pence pieces and deliver it in person.
Will let you know of the outcome!