I sent verification funds to Derivmarkts and then lost contact

I was asked if I wanted to trade crypto and was guided through opening an account with Derivmarkts. I was shown trades and saw a profit, but the withdrawal did not succeed when I tried to take the money out.

I was then told that I needed a blockchain account and had to send verification funds. After doing that, I was accused of money laundering. I was told the verification money would be returned once the matter was cleared, but after I was supposedly verified, nobody responded again.

I would like to know whether anyone else has faced the same pattern of a blocked withdrawal followed by a demand for verification funds.