Understand that we can buy the Fn F railcard only after we land in the UK (and not from overseas). But to get the best fares I would like to book advance tickets as early as possible. Question : Can I buy the advance fares with the rail card discount without first purchasing the rail card ? Am I correct in assuming that the railcard is required during the journey and not while booking? Plan to collect all the pre booked tickets AND buy the railcard at our first stop ie Bath. Will this be ok?