Civil Enforcement Service - I've Lost the PCN and can't contact them

[JDP66]

I received a letter detailing a penalty charge from Civil Enforcement Service but I have lost it and the PCN, and I am struggling to find out how to pay the charge as there is no way to contact them. Can anyone please help?
The incident occurred when I was directed to the wrong car park by the AirBnB Host. I received the letter last week but we can’t find it now. I’m happy to pay the penalty charge if I can identify the PCN. It seems unreasonable that there are no numbers to call or any way to contact the company. Does anyone have any experience with the Civil Enforcement Service?

[des8]

Can't work out why you would want to pay them.
Anyway without reference numbers etc it will be difficult, altho' they may be able to trace your PCN from your car reg. number, and your name & address.
Or just wait until they write to you again, 'cos they will

If they do, and you change your mind about paying, then start a new thread and this time do not identify the driver and we will see what defence you might have