Which is why I usually put tickets on my phone and have a printout. > If you can't even do that, you can go to the ticket window and they can look up your acco

Which is why I usually put tickets on my phone and have a printout. > If you can't even do that, you can go to the ticket window and they can look up your account information and verify your ticket. Queues and not long to catch a train, stations with no staff present... The latter has happened to be on the Tube and I had a problem exiting (with a conventional ticket!).