THY Flight Rescheduling Issue

My phone number is 0535***3107. We booked tickets for approximately 20 passengers on 27.08.2024 at 08:25 from Diyarbakir to Istanbul with THY and planned our schedule accordingly. Our flight was canceled at that time and we rescheduled our tickets for 16:10, adjusting our plans accordingly. We arranged a vehicle to pick us up in Istanbul, but then received another message two days later stating that the flight was canceled again and rescheduled for 20:00 on the same date. Due to this repeated change, the vehicle we arranged was canceled twice, causing significant inconvenience. Our plans were completely disrupted, and we felt embarrassed in front of the wedding host. Who will compensate for our inconvenience? I am waiting for a call from an authorized person. My phone number is 0535***3107, otherwise I will go to a lawyer and file a lawsuit.