Although vandalism is no fault of Southern, not opening the ticket office during the advertised times is. I was going into Charing Cross at 18.45 yesterday and although there were 6 or so ticket inspectors, the ticket office was closed. I had to get a permit to travel and use it towards a ticket at Charing Cross. This added to my journey time. The inspectors at HOP thought it a great hoot that there was nowhere to buy a ticket.