Baggage stolen in coach hold

Lats year, during my first trip with Flixbus between Grenoble and Lyon (France), I put my suitcase in the baggage hold. The driver didn’t give me any ticket or receipt. One hour and a half and a stop later, I got off the coach and realized my suitcase had disappeared from the hold. I informed the driver who did not seem surprised at all. He told me to log on to the ‘lost and found’ (they never mention the word ‘stolen’ on their website) section on Flixbus website. 

After a month and some of my phone calls to them, they told me they didn’t find my suitcase but didn’t offer any compensation.

I contacted the ”médiateur du tourisme” in France and after a few months, they contacted Flixbus which reimbursed me €150, much less than the content of my suitcase. Without the mediator’s intervention, I would probably still be waiting for a compensation.

I will of course never travel with Flixbus anymore. This company has absolutely no respect for its customers.