In mid-April the scheme suspended withdrawals citing a website upgrade, he said.
"However, the website was deactivated on the date the upgrade was supposed to be complete." Investors' funds had disappeared.
Police made enquiries into the supposed director of this company, including a supplied New Zealand address. "Unfortunately, the identity documents are fake and there is no connection to the address supplied," Robson said.
"No actual links to New Zealand have been able to be identified, which means those involved in this scam are based offshore."
Robson said the victims had unwittingly become involved in a scheme that bore all the hallmarks of a Ponzi scheme.
"Unfortunately, as the people behind the these scammers are based offshore the likelihood of recovering their losses are quite low."
Police advised victims not to engage with companies or people offering the prospect of recovering their funds.
"In our experience these services, which requires victims to pay, have not achieved any positive results."
For advice on avoiding online investment scams and what to do if you fall victim to one, see the Finance Markets Authority (FMA) website.
The FMA put out a warning about the company in April.
