yeah before i heared it from my friend, he said if he deposit on some ETH on some exchange and then ETH is never come on it.
he asking on manager of that exchange and manager it said if exchange under maintenance.
and the next day he get ban on it and his account is gone.
but i don't know what the name of that exchange, my friend is not tell the name.
Your friend is got scammed or he did tried something ilegal in that exchange. It doesn't make sense to his account got dissappear and how did he know he got a ban?
I don't get it why you did not notice the website address?
Shit happens to OP, usually they don't even checked the URL before put their username and password.