When I was talking to a rep at bit-mining.co I got this email address:

Soussi Firas (Sarif) (soussi.firas.tn@gmail.com)

A google search led me to this address: http://name911.com/whois/sarif.co

And these details:

Registrant Contact:
     Soussi Firas (Sarif) (soussi.firas.tn@gmail.com)
     Phone: +1.6472043470
     Fax:
     1760 Finch Avenue East

     Toronto, Ontario M2J5G3
     Canada

Is this info of any use?