My relative as registered keeper has received the att. PCN from Smart Parking.
As you can see it alleges a 4+hr stay at Bodmin services PL26 8UF, which seems unlikely at best for a small A-Road services.
However, being elderly there is no obvious 'smart phone' based data we can use as loose evidence, e.g a photo 2 hrs later with geodata 20 miles away.
They do agree that the photos provided show registration plates matching, e.g. this is a mistake but not an OCR misrecognition based one.
It states the date of contravention as 17/4/26 with date issued as 05/05/26, received in post this morning.
He has only sent the front page for now but there is no option to appeal on the front page, only pay!
Image pcn hosted on ImgBB
I will chase the rear ASAP.