Had a similar experience with Turkish Airlines, and I definitively agree on avoiding planes as much as possible, long-distance trains all the way.
It was seriously the worst experience I’ve ever had. Rude staff, no explanations, outright lies, condescending tone, hours long queues for meal vouchers that arent accepted annywhere or to get a crappy hotel for a few hours only, and just plain incompetence. I will never fly TK again, that’s how bad it was.