Free Traffic Legal Advice

Background
I was issued a PCN 46 for parking in a white marked bay. This a Red route. The signage is confusing and led to the offence. I have atttached the following documents for reference:

• Copy of the PCN notice https://imgur.com/a/8F4bsPj
• Copy of site photo https://imgur.com/a/JVel6rW
• Copy of relevant section of Highway Code https://imgur.com/a/32VNiOo
• Copy of relevant section from TfL website https://imgur.com/a/IHCKOPN
• Copy of adjacent parking bay sign https://imgur.com/a/hPihTd5

My arguement
The sign next to the bay states "No Stopping Mon-Sat 7AM to 7PM". To enforce this, TFL should have marked the bay in RED. Instead, TFL marked the bay in WHITE. As a working parent with young children rushing between appointments, I seek signage from TFL in accordance with Highway Code. In this particular case, the signage was misleading for the following reasons:

• for No Stopping , the box markings should have been RED and not WHITE
• The adjacent bay is also marked in white (but with correct signage)

How can you help?
Could you please check if the above arguement would work? Anything I can add to strengthen the case?