Turna.com Payment Successful, No Ticket Issued — Refund Request

I purchased a flight ticket via turna.com for an Air China flight on 13 August 2026. During the checkout process I confirmed the payment in my bank application, the money was transferred, but I received an error on turna.com and the purchase did not complete. There was no booking created and I did not receive any PNR number or ticket information. The next day the initially pending transaction in my bank became successful and 696.29 USD was finally charged to my account, but I still did not get any ticket or booking confirmation through turna.com. In other words, I paid 696.29 USD for a ticket that I never received. I even received a reminder email from turna.com stating that I have an incomplete reservation, which clearly shows that the booking process was not finalized on their side. I contacted turna.com several times, but my requests are being ignored. Their AI chatbot always asks me to provide a PNR number, which I cannot have because the booking was never completed, and I am not getting any response to my emails. I also contacted my bank, but they told me to wait for turna.com's response for two weeks. I am sharing my bank transaction screenshot that clearly shows the successful 696.29 USD payment to Turna Istanbul, while there is no corresponding ticket or PNR, as well as the reminder email about the incomplete reservation. I request that my situation be reviewed urgently and that the full amount of 696.29 USD be refunded to my account as soon as possible, since I did not receive any ticket in return for this payment and I no longer need this reservation to be issued.