Agoda Invalid Reservations and Discrimination

I reserved a room at Bodrum Park Resort from June 25 to July 1, 2023. When I called the hotel before making the reservation, they informed me that Agoda bookings were invalid and insisted on completing my reservation at a much higher price of 16,000 lira. Later, just to make sure my previous Agoda reservation was still valid, I made another reservation with a cancellation option. My reservation was confirmed when I called the hotel. When I asked to cancel my initial reservation, they told me that I could only get the lower price if I were a German citizen; otherwise, as a Turkish citizen, I couldn't take advantage of that promotion. They threatened to cancel my cheaper Agoda reservation and even said they had the right to refuse entry to my family and baby upon arrival. When I expressed my skepticism, they simply justified their actions as "right." Mr. E***, the reservation manager, who I initially thought had good intentions to ensure a pleasant holiday, advised me with another suggestion. He informed me that in such cases, using a VPN or any other fraudulent means would not help, as I was forced to make an online purchase through a site that is said to be under ETS's monopoly. When I asked if they would have sent me had I not questioned it, they said, "You can stay for as long as your money lasts in the initial reservation." Is it my intention to stay at the hotel as a guest or to seek refuge? Such language and attitude are unacceptable. They even said, "We won't let you in; you can turn back." Furthermore, Agoda never asked if I was a Turkish citizen or if I was visiting Turkey. This is the result of a purchase I made from an openly accessible online platform. Furthermore, they assured me that if I came with an ETS reservation, there would be no problems. How could it be any other way? I'm suing Agoda, Bodrum Park Resort, and ETS for the pain and suffering they've caused me.