Not allow withdraw, and refuse to contact

I made profit each month, so I didn't make deposit for 2 months. Now, I applied to withdraw my principal and the membership data on the computer showed that I had withdrawn already, but I didn't received my fund. The person in charge of the platform in Taiwan, named Chen Jiahe, went to Hong Kong and could not find him. And the chief financial officer Hong Shufang also refused to reply.