Unable to withdraw

Unfortunately I invested in copy trading on the blafx platform for about 2 months. Lately they had some campaign where they said they will double the assets so clients get more profit, at the beginning of that campaign I tried to make withdrawal for my money and they said I can’t do it during the campaign. After campaign was done, I tried to withdraw my money but nothing happens, I contacted their customer support and they said I need to pay 27 % of my assets as taxes. I told them that I will file complaints on all regulatory bodies and their pages on the internet as well, if they don’t accept my withdrawal in the next 24 hours and they did nothing. The account linked to blafx to receive my funds is a Binance account. I appreciate if you tell me what steps can I take to handle that fraud please.