scam profit copy trading

This is a scam broker. The broker staffs dont let us trade, when we open the trades, the account is disabled they then asked me to register for copy trading. We lost more than 3000 within 2 days. The broker staff called himself professional master trader charged us 5% on deposit fee, he asked us to bring in more clients to avoid the fee. He asked us to introduce 3 more people and promise increase our profit become 2% a day. We asked withdraw they blocked us on Whatsapp and we cannot login into the system again. Must avoid this scammer. Our account cannot trade and it lost money everyday. The staff tell us to deposit 7000USD more in order to withdraw.