Turkish Airlines Can't Bring Back the Suitcase They Lost For Over a Month

On my Turkish Airlines flight from Havana, Cuba, to Istanbul Airport, number TK 195, on June 26, my luggage did not arrive from Havana. I received an answer that the suitcase was stuck at Cuban customs, even though there was nothing in it that could be caught at customs. I sent many e-mails and called the lost property unit many times. I sent e-mails to be forwarded to Cuban customs. It is said that the mail has been received, but there is still no progress. On the phone, they say "we are interested in it, we have forwarded it to the relevant person" and the phone is hung up. As a last resort, I had to write here. The huge Turkish Airlines, the best in Europe, cannot get the luggage delivered. He has been searching for a suitcase many times for a month and cannot give a clear answer. I want interested parties to contact me. Registration number ISTTK48914.