And no, before anyone gets clever, it hasn't expired. Just got wasted by the KX barriers, at a guess.
I'm kinda tight for time this week, and I generally have NO time at P'boro station on a morning OR evening. So, being vaguely smart, I thought I'd get it replaced at KX ticket office.
Guess what?
You can't. Because it was issued at P'boro it has to be replaced at P'boro.
Meh.
Platform6

I recently got an 8th replacement for my season ticket which is 9 months old. Everytime it is the "new" barriers at Kings Cross that cause the problem. I stopped getting angry about it a long while ago, I just have a laugh with the Peterborough ticket office staff now, who I am sure are sick of issuing new ones. But will TFL do anything about it? will they fuck....