Wow ! Not the usual "Flying Motorbike" signs, but traditional "No Entry" signs ! As far as I see from the videos, you drove head-on to them, and totally ignored them. I have to say, use of No Entry signs is unusual, unless, of course, they have made the road one-way and you drove the wrong way !
GSV Streetview is too out-of-date to show these signs, the last view was 2022. So if you could do some legwork and tell us if there are any advance warnings of the restriction it would help build a case. I have to say that this does not look like an easy case to get dismissed. However, there may be a technical appeal argument based on Newham mismanagement of the enforcement process, so wait a bit to see what comes up. These specialised arguments can win an adjudication on their own, regardless of the original contravention.
