Greenstan changes to AmcorLtd and unable to withdraw

It first add line via advertisement and recommend to trade stock at beginning and then gold. MT4+CRM(Greenstan) changes to MT5+CRM(AmcorLtd) and require extra deposit situation: 1.decrease the handling fee for hedging. 2. Withdrawal requires to pay income tax which is 15% of profit. 3. Mainland account requires to provide margin. Then, you are unable to contact teacher, assistant, or customer service.