it wasn't new to us (but probably you) that most exchangers are asking for but there is some exemption, make a trade with a small amount as surely they don't care about it. But wait, use not know exchanges as these reputable exchanges will caught you up and ask KYC. Or , have to make trade online like asking your friend.
But since you were talking about margin trading, that seems impossible. And I have one piece of advice, don't make a deal online and promise you not to ask KYC especially for strangers.