OK. so here's the satellite view showing the disabled spaces with the normal ones adjacent.
https://www.google.com/maps/place/Ashburn+Rd,+Scarborough/@54.269939,-0.4138019,115m/data=!3m1!1e3!4m6!3m5!1s0x487f47f6ebb70b21:0x1b8899e44675538b!8m2!3d54.2711645!4d-0.4137061!16s%2Fg%2F1tgnln8f?authuser=0&entry=ttuIt was dark and in my rush it turns out that I hadn’t quite cleared the disabled spaces and ended up parking in one, which I didn’t realise until I came back out with a PCN on my windscreen. I have been around the whole car park and there are no signs whatsoever to signal that this is a council car park or to say PCN’s may be issued.
Although you say it was dark there are street lights. Weren't these turned on ? Having looked at the satellite view, plus GSV and your photos, I think you'll struggle with this and would have to take them to the Traffic Penalty Tribunal for an unbiased judgment.
Points for your appeal to TPT
1. no signs whatever giving the car park conditions
2. disabled bays not signed at all
but that's about it, I'm afraid. Whether these would win at an adjudication, I'm not sure, as the markings on the car park surface are very clear, and the whole car park is lit. I think the key words in your narrative are : -
"I was late getting to the sports centre to play football and was in a rush"
So clearly didn't check your parking.
YOu still have the discount available, so must decide whether to pay this, or wait for the Notice to Owner to submit formal representations. At the NtO stage the discount option is lost, but they may re-offer it although its not a legal obligation. It all depends on your attitude to risk: -
"He either fears his fate too much
Or his deserts are small
Who fears to put it to the touch
To win or lose it all!
Earl of Montrose(he lost and was executed in Edinburgh: -
https://en.wikipedia.org/wiki/James_Graham,_1st_Marquess_of_Montrose)
If you lose, it won't be quite so painful !