On the white lines point I accept I should have waited but honestly I didn’t expect to get stuck where I was as there was no traffic the other side of the crossing. I’m still not sure why there was a traffic jam where I was as it was!
But the vehicle in front of you was preventing you from passing the crossing, so IMO you should not have proceeded past the white line, regardless of if there was a traffic jam or not. What if there was a train with a much wider load passing through?
However I do accept that crossing past the line was my fault and that may well be the argument they use against me assuming they even do respond to my complaint.
Absolutely. If there was defective markings or some other cause then yes, even I would be looking for someone to pay for the damage. But in this case I think perhaps it is a learning point and something you would not do again.
If that crossing is CCTV controlled then that means the operator chose to bring it down - not only 4 minutes before the train arrives but on top of my car.
I bet the view from CCTV would not clearly show your car in the way of the barrier (cameras situated at an angle which does not show), or that the barrier is automated from a closing/opening point of view, and the operator just checks that the lines themselves are clear.
4 minutes is not unheard of, there are several crossings here where you can be waiting for 5 mins+ (and also one crossing where the amber lights never used to work, but they've now fixed that).