At London Bridge I bought a ticket for St Albans from the machine. It doesn't ask you about route: only for your destination and whether you would like a single or return. The machine issues a ticket from London Terminals to St Albans. This is not valid through the Thameslink core. Southeastern have admitted that they know this happens and they can't fix the machines. They have admitted that the ticket would be invalid. And yet there are no notices on the machines to warn people of this and the tickets are still being sold. Thameslink have confirmed that these tickets would not be valid if used. Am I alone in thinking this is really not on? To sell tickets knowing that they may cause people to receive penalty fares if used from the station at which they are sold? Southeastern don't seem to appreciate that there is anything wrong with that, and the ticket office actually suggested that I might "just try my chances if I'm not getting off at Farringdon".