I wanted to withdraw capital and they asked me for more money

I did not find it on the listIn this platform I invested 1000 dollars, having a profit of 586 dollars when I wanted to make a withdrawal they asked me to deposit 1000 more dollars to validate my account and they withdrew 3000 dollars from my bank account, more when I noticed this scam i demanded my money back and they asked me for 3000 more dollars to validate my account, currently there is 4586 dollars in my account and they refuse to make the refund.