Follow the advice and you won't be paying a penny to these scammers. There are so many things wrong with that Notice to Keeper (NtK), including but not limited to failure to fully comply with all the requirements of PoFA 21012, no evidence of any contract formation with the driver, lack of evidence that PCS has any legal standing to collect money on behalf of the creditor, PESS.
For now, all you need to do is appeal to PCS. Easy one to deal with… as long as the
unknown drivers identity is not revealed. There is no legal obligation on the
known keeper (the recipient of the Notice to Keeper (NtK)) to reveal the identity of the
unknown driver and no inference or assumptions can be made.
The NtK is not compliant with all the requirements of PoFA which means that if the
unknown driver is not identified, they cannot transfer liability for the charge from the
unknown driver to the
known keeper.
Use the following as your appeal. No need to embellish or remove anything from it:
I am the keeper of the vehicle and I dispute your 'parking charge'. I deny any liability or contractual agreement and I will be making a complaint about your predatory conduct to your client landowner.
As your Notice to Keeper (NtK) does not fully comply with ALL the requirements of PoFA 2012, you are unable to hold the keeper of the vehicle liable for the charge. Partial or even substantial compliance is not sufficient. There will be no admission as to who was driving and no inference or assumptions can be drawn. PCS has relied on contract law allegations of breach against the driver only.
The registered keeper cannot be presumed or inferred to have been the driver, nor pursued under some twisted interpretation of the law of agency. Your NtK can only hold the driver liable. PCS have no hope at POPLA, so you are urged to save us both a complete waste of time and cancel the PCN.
Do not add any of the mitigation that you have told us about. None of that will matter in this case unless it ever went to court as a debt claim, which is highly unlikely. Any initial appeal will be rejected but you will receive a POPLA code with which you can make a secondary appeal which will have a much greater chance of success and we will cover as and when necessary.