You've got the second street name wrong; it is Allerford Road. No wonder I couldn't find the junction !
I have now seen the video, which shows you driving with no hesitation whatsoever into the box, then the vehicle in front stops just beyond the box thus forcing you to stop in it. This is the exact circumstance the statute is designed to prevent. So on the basis of the video, the contravention is made out.
Quite what you could put into any representations, I don't know, hopefully others on here can suggest something. It may be they will suggest a 'technical' appeal unrelated to the contravention itself. These can, and do, win appeals on their own.but are only considered properly at London Tribunals.