Okay all, it's been a while since I posted and that's because Haringey have taken their time to get back to me.
The short and disappointing news is that they have rejected every appeal and now all the PCNs (13 of them) have progressed to the Notice of Rejection. This time I have received the letters for each one and they all give the details as to why they were rejected. They simply mentioned that I should have been aware of the expiry date of my resident permit, that PCNs may have fallen off due to adverse weather conditions and some filler text about being offered the initial opportunity to pay the reduced fee.
They did not address the lack of delivery for some of the Notice to Owners, the suggested argument for continuous contravention being applied here nor the email I received from the Head of Highways and Parking at Haringey Council, wherein she said that vehicles are typically removed after 3-5 PCNs being issued.
I've attached images here of one of these in order to not flood the entire post with the same copy across all of the PCNs. I have omitted the other pages which are just the forms to fill in to progress this.


As a reminder, I submitted two different appeals.
For PCN 1/13, I tried to appease to their sympathy that I did not see the email. It turns out it arrived into my junk folder and my email client did not pick up on this. I had to go onto GMail to locate it.
For PCN 2-13/13, I use the argument of continuous contravention.
My thoughts/questions:
1. I am considering paying the reduced fare of PCN 1/13, as it was my mistake. Thoughts on this?
2. Despite the reduced rate being offered for PCN 2-13/13, I think it makes sense to appeal this further.
@Enceladus also mentioned in the previous post that are some discrepancies in the photos of the PCNs. I will look to see if there are anymore and build the case off this + continuous contravention.
3. I've not done this before so for my understanding, I am assuming this is now going to progress to a hearing where I will need to attend court?