The woman I was handed over to in the office was very helpful, did apologise and said she had learnt someting. The woman gateline attendant who I first dealt with didn't. She had insisted that this clause meant that I could not use the Northern Line towards High Barnet
- Northern Line: Moorgate to Mill Hill East or High Barnet via Archway, but not for alighting/boarding between Kings Cross and Highgate, except at Kentish Town.
When I showed her the Staff Travel Guide she told me not to tell her what her job was. That is when I asked her to seek guidance from her supervisor and the office got involved.
I have used Liverpool St, Epping, Baker St. and Northwood without any issue. On a fairly recent occasion when I arrived at Moorgate on a GN service I was pointed towards one of the ticket machines to buy a ticket but another member of staff nearby stepped in to explain to his colleague about inter-available routes and that I was valid.