Public transit seems to understand my problem (partially)
Previous blog post which has most of the story:
http://blog.0x3a.com/post/2826619813/the-stupidity-of-the-public-transit
They finally send me a partial refund, with partial I mean that again they are fighting amongst each other I think.
I received the refund for the train tickets, the subway is still to come. At least we’re getting somewhere :)