Hi Minty,
At the City Uni, did you do the PAPI test?
If this test is passed, you could start an appeal procedure. I plan on doing that myself. I've done 10 hours flying at night as PIC with an instructor. I've also done a "medical flight test" with regards to identifying lights at night.
With a stack of evidence in my favour, I'm interested to see what feedback I'll get.
It'll probably be the start of a lengthy appeal, but at the end of the day, as mentioned in previous posts, they won't have and conflicting evidence to say I am a liability whilst flying in the dark.