ST5MAX is scam app. 100%

was scammed by a Chinese girl into investing in the ST5 application for $3750
At the beginning she was doing for me the trading and always ask to deposit more USD to increase the Profit. She showed me how to withdraw $100 and was received $80.00 to show me that everything is fine
After I had a Fund of $3750 I tried to withdraw but they asked to pay 20% from my fund amount to allow me to withdraw my fund. Later I received from Google a message that they removed the ST5MAX app from my mobile as it's fake app and could steal my personal information such as bank accounts and passwords.