I've just claimed £3.17 from Northern. 25% of a (bargain basement Advance with railcard) ticket for a journey of nearly six hours with two changes, which all went to plan until NT blew it by cancelling the last leg of my journey so I had to wait for the next one.
They nearly caught me out because when you put in your journey details and it finds your itinerary, it ignored the train that was cancelled and showed that I should have arrived at the time I actually did, despite I should have been on an earlier train with an earlier arrival. I entered my journey details manually, including the cancelled train, and it seemed okay with that.