Tried calling the phones in the other thread, only a robot answering the US phone. Will try again.
Next step: ASIC report.
ASIC doesn't actually mediate disputes or assist in debt recovery. That's the function of the various state Fair Trading departments (and, to some extent, the ACCC) and the courts. ASIC can investigate whether a company is breaking regulations which come under ASIC's jurisdiction - so regulations relating to the provision of financial services, the trading of securities, the sale of commodities and precious metals, etc and invoke penalties for non-compliance with those regulations (usually fines and directives to comply).
For what it's worth, the ASIC registration for Mr Bitcoin ( registered in June and also operated by KenseyCol) shows the following address as the registered place of business/address for service of documents
27 Kamdell Pl
Orange NSW 2800
I don't believe that any competent lawyer wouldn't have found this information as it's linked to KenseyCol's record through their ABN as well as their ACN.