Martin Currie Global Equity Funds are scammers

I have been lured by this scammers to deposit money and make trade. They deny me withdrawal with excuses any time I want to and now I have accumulated $4,000,000 they asked me to pay them commission of $200,000 using external wallet before I can withdraw else they will donate all the funds to charity I am appealing to public to help me fight for justice and recover my funds from this fraudsters.