Received N1SDT claim form for private parking fine

...and how long did it take to resolve this "emergency"? Also, why was the subsequent PCN then ignored?

From memory around 45 minutes as I had to dislodge the sweet and then calm him down enough to resume driving.

Also, why was the subsequent PCN then ignored?

Honestly I did not believe private charges were properly enforceable, I thought they just try to scare people into paying up.

At what point did you realise that you had entered private land that was controlled as a car park? If you didn't, why do you think you didn't? Why did you later ignore the NtK, the reminders, the Letter of Claim?

At what point did you realise that you had entered private land that was controlled as a car park? If you didn't, why do you think you didn't? Why did you later ignore the NtK, the reminders, the Letter of Claim?

I didn't realise it was controlled as there was no barrier and didn't pay attention to signs due to my fragile state.

I don't have a solid reason as for ignoring the letters other than previously stated, what might be acceptable?

what might be acceptable?

Telling us the truth rather than increasingly convoluted inventions. If you're not going to be honest, you won't get advice on here.