Scam

I lost $365,810. I let the account grow to $816,816. This company do not allow you to withdraw your money. They want me paid $170k for for some tax before they allow me to withdraw any funds. I told them why not take it out of the account because I only take out $75K. They told me if I do paid they will not allow me to withdraw.  I don't believe they will allow me to withdraw after I paid.