On a recent-ish visit to Buxton, I popped into the station to get 2 or 3 Derbyshire Wayfarer tickets for future use. (For someone over 60, they are the cheapest method of travelling Chinley-Sheffield and back) . I was surprised to hear the booking clerk tell me that I can now buy them on the train, so have no need to buy in advance. A couple of days later, I was travelling to Manchester, and asked the guard if this was now the case, and if he'd be able to sell me one were I travelling to Sheffield. He said he had never sold one, but would check if he could. He was unable to find the ticket in his machine. So, does anyone know the situation here? I have subsequently stocked up on the Derbyshire Wayfarer scratch-off tickets by popping to the Tourist Information Office, just to be sure!