Hi ericsbrother,
Thank you for your input and the notes, it is greatly appreciated and valued!
I have attached the photo of the entrance to the estate and the sign they have there (it says in large letters "4 Hours Maximum parking" and then in smaller letters probably something to say to others to refer to conditions somewhere else, but I was not able to read it after zooming in on the photo taken from the car on my subsequent visit)
PS.
I did presume that whatever I do write to the parking company themselves in appeal will be rejected anyways.
BUT as I can now try to finish this off at POPLA stage as the appeal to POPLA has not been submitted yet, I thought it better to ask you all in the forum, as much more experienced, to help me draft a successful POPLA appeal please.
Hope it makes sense.