The scammer smartly moved from a bad registrar(Namecheap) to a very bad registrar(1api gmbh). Namecheap atleast communicated regularly, but 1api and EasyDNS don't bother replying at all. They are just as useless as exch.cd and exch.cy registrars.
No update exchange support on the two domains that removed the phishing affiliate links form their websites?
I think they no longer have a case with exchange.net