SunExpress XQ893 Flight from Milan (MXP) to Izmir (ADB) - Lost Luggage Incident

My SunExpress flight XQ893 from Milan Malpensa (MXP) to Izmir Adnan Menderes (ADB) on July 27th was quite frustrating. I had checked in my luggage, and it was in excellent condition when I handed it over at the MXP airport. Unfortunately, upon my arrival at ADB, my luggage had been tampered with and several of my belongings were nowhere to be found.
I filed a lost luggage claim, but I'm still waiting for a response. I must say, it's quite disheartening considering the fact that I was traveling as a SunPremium passenger. I am very angry with the lack of assistance and the fact that my lost items are still unresolved, even after a whole week.