Hey I hope this is the right place for my problem.

I was flying MUC-IST-TAS on Turkish Airlines a month ago. During a mistake of the checkin-agent my luggage got lost. Okay there was no opportunity to claim it in TAS si I did right when I was back in MUC a few days later. They didnt find it anywhere, but told me fill out a list if all my stuff inside yhe baggage and its worth. I only had a layover in MUC so I hand it over a week later when I was back home again and the told me that I will send to there HQ in IST. A few days later I noticed that name and adress had big mistakes. I didnt noticed that on the first time because I was completely jetlagged and had just the wish to see my bed.
Ok I tried to contact TK Office at MUC first via Email and later by phone without any response. So I walked in there physically last week to correct there mistake.

Did I everyhing right. I'm pretty sure that I will never get any response from Istanbul so I'm thinking about to contact a lawyer.
What about immaterial compensation??
I spend hours on discussing with incompetent TK staff and shopping instat of holiday.