Is ByteTrust a legitimate company?

I want to know if ByteTrust is legit! I requested a withdrawal from my account after January 5, 2024. First they ask for a deposit of 20% of the total amount (which I submitted) to withdraw the money (they say it will be returned to me once they receive the funds.) Today is April 30th and currently they require a deposit of 5% before receiving the funds. I want a mining fee of . My question is is this a scam to get more money out of me? Should we give them 5%? Need help?

chino