cex has deposit problem , do not deposit to it . It can withdrawl to your win wallet ,but your win wallet could not send coins to it. I have try from other exchange web , but get the same result as from my win wallet .So there are two reason： one is the wallet problem ,and need resetup wallet ,and another is Cex dont want you send coins to their web , they want to eat your money greedly .  I hope fact is the former , but latter have a possibility .So be careful with this coin!!!!!!