Absolutely the worst place to buy a ticket unless your in a rush. Ask at the ticket office and investigate alternatives. I bought a couple of times tickets from West hamstead to working with national rail card for £29.?? It had a small commission by Trainline..seemed reasonable after a discount due to rail card. turns out if I bought the ticket at the station I get a day return for £19..No brainer!! So go to the station and ask for advise..mid you previous advise from the station master also only suggested £29! Moral in the story don't trust with the station masters or Trainline..BOTH are not on the customers side! Nationalise the trains I say!