A rather long account of my experience is here (as I wanted to try and explain things from my side): https://saveecrewards.co.uk/blog/unpaid-fare-notice In short - I got on the 19:30 (P4) [note: I mistakenly typed P6 when I posted this, but it was definitely P4] last Friday instead of the 19:00 (P5) at KGX, I hadn't worried when no annoucements for ready to departure were made just before 19:00 as I was told in the lounge it was a late arrival so would probably depart late. As I go pretty much on auto pilot at KGX and have never got on the wrong train before, I thought it may have been an innocent mistake as the 19:30 already had the door labels saying Edinburgh on it. When I came back on Sunday I retraced my steps and I'm now pretty sure (but not certain) that the 19:00 popped up on the P4 board on the bridge, meaning, if this is true, I received misleading information. The guard wanted to charge me full fare even though he knew before departure I got on the wrong train. I didn't have a suitable payment method so I asked for a UFN. Now for the appeal I'd like to know if the 19:00 was advertised for a brief period at the wrong platform. If that's the case then it would be void and I should really received delay repay for arriving late. As RPSS (Southeastern) handle these appeals does such a thing as goodwill exist if you've made an innocent mistake? Can LNER deal directly with the appeal? Also it's been pointed out to me that the UFN has the wrong headcode on, and I also noticed (despite me giving him my passport) he noted down my name incorrectly. Would that be enough to void it on its own? Hmm ok, this wasn't in short after all.