Unable to withdraw funds for a long time, using various reasons to pay more money

I met a man in ig who advertised as an agent to operate Taiwan stocks. After understanding, he said that he can disburse 6/4 of the account every month and every week. At the beginning, he replied to me every day. I can’t withdraw money for any reason and asked the man, but he said that others can remit about 500,000 yuan before and after the account was frozen, but there is still no whereabouts, and this person is still very active on the ig line