The support staff read the wrong order, causing the customer to burn tk

I participate in trading on Qbiginvest exchange. When I first started, I did not have much experience with gd and told the support staff when they would say I was safe. but the support staff read the wrong order for me many times and guided me to balance the 2nd order, causing my account to burn. By the time I lost all my money, the staff refused to take responsibility. I texted and called him, but he didn't answer. I contacted people who made promises to me but they all denied responsibility. I deposited $5500 and lost it all