Unable to withdraw

He sent private message to me on Instagram, and said he didn't use it very often and ask me to add him on Line. He induced me to make money by investing in Forex, and cheat me that it was a well-known Forex platform.I am only able to withdraw my money once, after that he induced me to deposit money by some special offer. and after I deposit more money, he disappeared. I've called the police. Please be careful not to be cheated by him again. I deposit TWD470,000 and cannot withdraw so far.