I'm also looking for ZCL support on Cryptopia...address won't generate and they directed me to the ZCL devs. Bittrex has been too much of a pain in the ass...I went through their whole enhanced verification process, got approved, and now when I try to generate any wallet address I get "ACCOUNT NOT VERIFIED"
Open a support ticket with Cryptopia. They have ZCL listed, but when you try to deposit you get an error. I opened a ticket also to see if they can fix the issue. The more complaints they get the more likely they will be to do something about it.