Kwdw.com is a fake exchange. You are able to deposit funds but unable to withdraw funds. They will block your account and wont let you withdraw until you pay the verification fee to open withdraw again (still will not be able to withdraw).After the support says account is verified, now want another $200 deposit to upgrade account status to premium because funds are more than 300usd, otherwise they will not unfreeze it. User on Telegram called Crypto Mason in Telegram suggests that people deposit eth in this exchange and sell it for a 9.5 % profit but you will not be able to withdraw it.