Fraud broker, unable to withdraw

A net friend induced me. At first, I can withdra funds. But then I changed an app cuz they said their app was upgraded. But I can't withdra wfunds afterwards on grounds of insufficient turnover and money laundering. I lost 280,000. I;ve called the police. I know I have only a slim chance of recovering my funds. But I hpe people who see my exposure can stay away from this scam.