Fraud platform scams. Unable to withdraw

I deposited funds on November 18. But they refused my application for withdrawal for wrong bank account number. The customer service said I have to modify it. But I can absolutely not make such mistake. They deliberately added one more “0”. And I was asked to pay 20% margin, that is 211,805.5, to modify it. Then I can withdraw. But after I paid it, I was refused again on grounds that my credit score was 80 and it should be improved to 100 if I wanna withdraw funds. So I added 150,000. Now I am ruined. This is a bottomless hole, I hope you can avoid being cheated.