Is FTX a scam, or is it legit?

My name is thien truong, i got a date from someone on the internet and invited me to be an investment. i found out that this exchange is ok, so i joined. when there is a problem, they block the phone number and block the zalo, so they can't be contacted. i ask you to solve it for me. fraud and misappropriation of property. i am currently investing in the exchange FTX us. when i made a profit, i made a withdrawal order to the binance wallet, they told me to pay the operating fee, then i couldn't deposit it because of the network. told me to transfer to a bank account, then told me to top up insurance. then they told me to pay the investment fee. but they still delayed and did not transfer the money to me. at first they told me to pay 5% fee, then 10% fee, then 4% fee and now told me to pay 12% more investment fee before they transfer money to my account. i don't know how to get them to send me the money. i have now closed nearly 100 million dong, but the exchange FTX us is still unresolved.