Ajet Canceled My Istanbul-Bodrum Return Ticket 5 Times and Ruined My Travel Plans

The return ticket that I bought in March for Istanbul-Bodrum has been canceled 5 times and I had to make changes. With the last change, my flight that was 2 days later has been cancelled as of today. When I requested the change of my return ticket, it was stated that I would not be changing the return ticket because it had a different PNR number. They have also created victimization on top of victimization because I made a hotel reservation. They collect cash with early-stage ticket sales and then constantly ruin people's limited-time holidays in this way.