Man of Honour
Honestly I'm surprised nobody has sued Southern Rail for "goods not as described" sort of thing on a season ticket. I probably would have throttled somebody or firebombed their offices by now if that was my route to work! Surely some bright spark out there has started action against them? How can you pay thousands of pounds for a season ticket and then essentially not be able to use it?
They have however announced a compensation scheme for season ticket holders so you can claim up to one months cost back. I'm not sure what the position is for people who use Oyster cards on a weekly or monthly basis. Refunding 1/12 of the season ticket cost might suggest that they think they've provided 11/12 of the service - as a regular Southern user (and not on one of the worst affected lines) I think they might struggle to evidence that.