Hi,
Hoping the experts in this forum can help me please.
I was visiting my very elderly in - laws at their Council flat which is on a housing estate in Battersea, Wandsworth. They gave me a housing parking permit which was given to them by the Wandsworth Council for anyone visiting and needing to park the car, I displayed it in my car and parked on Austin road. It was the first time I had used this Housing parking permit!
Came back to the car and noticed I was issued
a PCN – Contravention 12 (see attached). What I didn’t realise was that the Housing parking permit I displayed in my car could only be used in a designated parking area behind the block of flats (there are 6-7 parking spots for visitors I believe). Genuinely didn’t realise that the housing permit could not be used if parked on Austin Road ( i.e. in front of the block of flats where they live).
Below are the PCN Images.

NOW, REGARDING THE ISSUED PCN: -
It so happened that, I had parked my car right in front of a parking sign which was partly defaced. This can be seen if you zoom in and look closely at the photographic evidence that the traffic warden has posted on Wandsworth site (there are two pictures where the defaced sign can be partially seen with the car in view).
https://parking.wandsworth.gov.uk/pcn/The traffic warden has rather cunningly tried to avoid taking the picture so that the defaced sign is clearly visible. In fact the traffic warden posted another individual photograph of a normal parking sign but this sign has been taken on the adjoining road around the corner (Astle Street). NOT where I had parked my car!
Also, on a separate note there is a number on the pole of the displayed parking sign (which the traffic warden took) which is 010 but where I parked my car the number on that pole is 008. ( can be partly seen in the council photographic evidence)
On the day I did take a picture with my car near the defaced traffic sign, but my number plate is not visible. Also have a picture with the defaced parking sign I took. (have attached both the pictures).

Are there any grounds to challenge this PCN – especially given that my number plate is not visible near the defaced sign?
Hoping someone can help. Thanks.