You need to follow the instructions. I said to show the back of the Notice to Keeper (NtK) you received! We do not need to see the reminder or your receipt!
Did you contact customer services at Lidl about this after being advised to do so by the manager?
What on earth do you mean by "three misrepresentations"? The alleged event was on 5th March, confirmed by your receipt from the same date. ParkingEye then applied to the DVLA for the registered keepers data because they have no idea who the driver is. They then issued the Notice to Keeper (NtK) on 10th March.
The letter you have shown is NOT a "letter before action". Where do you get these ideas from? Only a Letter of claim (LoC) which MUST give 30 days to respond or pay before a claim can be issued needs to be taken seriously. Not a silly debt recovery threat giving you 14 days to Pay.
It is a pity you didn't cone here earlier as there would have been a very simple appeal to POPLA that could have got this cancelled because the NtK is not PoFA compliant. The location is simply stated as Lidl Oxford.
There is no indication of whether that is:
• Lidl, Templars shopping park, Unit 5A Between Towns Rd, Oxford OX4 3JP; or
• Lidl, Watlington Rd, Oxford OX4 6NF
In the meantime get back in touch with Lidl and let them know that they should get the PCN cancelled as you were a customer. Escalate all the way to the CEO if necessary. Make sure that everything is in writing as a phone conversation is not worth the paper it isn't written on.
Do not pay this. It is easily challenged should they try to litigate this. Under no circumstances reveal the identity of the driver. The driver must be referred to only in the third person. No "I did this or that", only "the driver did this or that".