http://news.bbc.co.uk/1/hi/business/7861827.stm
''Machines are not designed for complicated transactions, they are designed to move lots of people quickly," said Andy Wakeford, Atoc's head of fares.
"Whether you buy from a machine or from a ticket office, we will sell you cheapest ticket available for the through route from the station you are travelling from to where you are going to. It is not in our interests to make passengers pay more.
"Split tickets are being used in a way they were not intended for.
"We actually go further than other industries and allow people to buy and use them if requested, but we won't go out of our way to encourage passengers to use them in a way that was not intended when there are other good value-for-money fares available."