jon, (edited ) Ah. Despite FlixBus having messed up their live information for my Amsterdam-Berlin trip last week, they’re not paying a cent compensation because it’s “Verschuldens des Fahrgastes” (responsibility of the passenger, ie me)
That’s a peculiar formulation of “we sent you incorrect information and why did you possibly act on it?”
Edit: @partim gave me an idea: request the refund via the automatic system. I have, and it went through. Maybe this works?