Frequently Asked Questions?
Can I use my Railcard to buy my ticket on the train rather than at a station?
Only if there is no ticket office, or the ticket office is closed and there is no ticket machine available to buy your discounted ticket at the station at which you began your journey. If this is the case you can buy your discounted ticket from ontrain staff.
Otherwise, if ticket facilities were available at the station you could be charged the full price Standard Single fare.