Corendon Airlines Rescheduled My Morning Flight to Evening and Refused a Refund

I bought a ticket for 3 people for Corendon Airlines' Izmir-Düsseldorf flight on 29.06.2024 at 08.15 on 27.12.2024. Because I had to be in Düsseldorf in the morning. Corendon Airlines company said that my flight from 08.15 in the morning on 10.09.2024 was rescheduled to 19:00 in the evening, without giving any reason. I chose Corendon Airlines just because I wanted to be in Düsseldorf in the morning, but the company changed the flight time according to its wishes. He said that he did not accept any cancellations or refunds on the ticket. As an excuse, they said that they were already selling very cheap flight tickets. Now, unfortunately, I will buy a new ticket for my Düsseldorf flight and it will probably be much more expensive than the ticket I bought in June. Because we are in September now. And thanks to Corendon, I think I will have the most expensive flight of my life. Thank you Corendon Airlines for selling it really cheap!