https://[scam exchange url]/faq
As a rule of thumb, any service that requires you to DEPOSIT funds in order to WITHDRAW funds is a SCAM...
Did you fund your account with an altcoin, or did they give you "free" money, and now you have to pay to receive your "free" money? In the first case, you were properly scammed, in the second case you allmost got scammed but were saved from a scam because you opened a topic on bitcointalk...
I edited this post to remove the link to this scam... No need to give it a better pagerank
Yeah, it's one of those common "you won X btc, but you need to deposit 0.X btc to withdraw" scams. I get like 5-10 pm's a week on Discord with these messages.
I must be the luckiest person alive to win so much BTC