No withdrawal

A person I met on social media told me that I would be able to earn 8% to 15% in a stable manner through trading. Two weeks ago, I deposited 1000 USDT, earned 20 USD, and was able to withdraw. I added 10900 USDT because I was relieved to be able to withdraw and earn money. As a result, I earned 60000USDT and made a withdrawal, but I was told that tax was required and the withdrawal was refused. Since it is listed as xness, when I asked support, I was told that it belongs to the U.K. (FCA), the financial services registration number is "730729", and it is said to be a subsidiary of xness. When I actually contacted Exness (UK) Ltd at 730729, I was told that there is no subsidiary company and that this company is a fraud. If possible, I would like to have my deposit refunded...I am not the one who was deceived, but do you have any countermeasures? The site below is currently in operation. https://exness-eur.net/ Currently, I am still able to talk with people on SNS. Professor, please.