Sunexpress Airlines Renders My Suitcase Unusable on Flight

On my flight from Van to Izmir on June 1, 2024, the airline rendered my suitcase unusable. I couldn't take it because the suitcase wheel was broken, and it weighed approximately 24 kg. No report was made at the airport. I took photos and made a complaint on the same day. Later, they requested the photos of the suitcase again via email, and I sent them. Today, when I contacted the customer service representative, I was told that the file was negative. They took this stance supposedly because there was no report made on that day, even though they themselves could see the extent of the damage. I urgently demand that my loss be compensated.