Principle first and then profit. Profit cannot be withdrawn. Cannot connect to the intermediary anymore

I had been totally muddled. They ask to withdraw principle first and then the profit. The submittion of couple hundreds dollar had been approved, but no payment is made and they just return my fund to platform in the next day. I had withdrawn for four times~~~ They refuse to withdraw funds. I that that I am not the only victim. They hope that everyone feels that even if the principal is refunded> Will they compensate you for your loss if you lose? Don't settle the matter and speak up boldly, so that more investors will be protected from deception. salespersons' words are not worth to trust, I hope everyone keeps their eyes open. . . . .