Im A.

The exchange is a scam, I first deposited a small amount of $50 Usdt and they allowed me to withdraw but when deposited $400 Usdt they won't allow me to withdraw, they provided a BTC wallet address that I should send about 0.03btc as verification before I will be allowed to withdraw the initial amount and the subsequent one.
When I checked online the website domain is an old one but it was recently sold to them and they changed the name. And they only registered the website to be active for just a year and it has been running for about 5 months now.
Which exchange need you to deposit money to their personal wallet to verify your account.
DON'T DEPOSIT ON THAT PLATFORM DON'T SAY I DIDN'T WORN YOU