1. I retract my previous informal challenge.
2. The video shows no evidence of my vehicle allegedly passing any upright warning signage at all. Therefore, the contravention did not occur.
3. The 1996 Act allows me to use "one or other grounds". So, your EN limits to one.
4. The date of service is not necessarily the deemed date of delivery, Again, I refer you to the law in this regard.
Considering the above, please cancel both documents.