Sir – First Great Western initially told me a return to Abergavenny would be £87, but it transpired that I could have “Supersavers” to and from Swindon and a return from Swindon to Abergavenny for a total of just £37.50.

If it makes commercial sense to FGW to get me there and back for just £37.50, why do they suggest I should pay them an extra £50 ?

If a fare of £37.50 is available in certain circumstances, why is this not immediately offered by the booking office computer?

David Bradnack, Oxford