Through the Daily Mail apparently; £13 instead of the usual £26.
Details here - 50% off family and friends railcard - HotUKDeals Forum
If you qualify with kids the right age it can save a lot of money on train fares.
You can see whether it's worthwhile by planning dummy trips with & without the discount. Seems to pay for itself in one go even on shortish journeys - trainline: buy cheap train tickets, get UK train times & fares - book seats online
Details here - 50% off family and friends railcard - HotUKDeals Forum
If you qualify with kids the right age it can save a lot of money on train fares.
You can see whether it's worthwhile by planning dummy trips with & without the discount. Seems to pay for itself in one go even on shortish journeys - trainline: buy cheap train tickets, get UK train times & fares - book seats online