A visitor to this site has highlighted some missing fares between stations on the North London Line and the northern branches of the Northern line. I have sent the following email to the Oyster helpdesk to try and get the issue resolved.
A visitor to my website has stumbled across a gap in the fares table for some journeys in North London. If you travel from any of Canonbury, Dalston Junction, Haggerston, Hoxton, Dalston Kingsland, Hackney Central, Homerton or Hackney Wick to Northern Line stations north of Mornington Crescent via either Camden Road/Town or Kentish Town/West then you will be erroneously charged as if you had gone via zone 1 (Highbury & Islington and Euston). If you travel from either Stratford or Highbury & Islington you are correctly offered an avoiding zone 1 fare if you use either of the above OSIs.
I’d be grateful if you could confirm when this anomaly can be corrected by and whether there is anything that any passengers affected by the issue can do to redress the overcharge.