Don't. Fuck. With. Zap.

Dexus, I don't know you and you don't know me, so I doubt you will take me advice but I'll stay post it anyways.

You trace the call or report him to the Authorities, You can also try to dox Zap yourself or have someone else Dox him for you. I would have helped if I know how to deal witht eh same situation but I have never been in a doz situation like you are in.