FCC finally got round to putting up some clarifying FAQs yesterday afternoon (we'd love to think a lengthy email conversation we had with them helped point out some discrepancies, but given how long it takes big companies to sort out their corporate line, it was probably coincidence). Anyway, long and short of it is that if you would normally catch a train that isn't running at the moment, and the delay is more than 30 minutes, you can make a claim. Although, given that there's still a train every half an hour, you'll probably have to wait for something else to go wrong to be in line for some cash.