At last police have raided some of the scammers!
Not sure which ones yet but it sounds like two operations covering six schemes.
15 May: Apparently it was John Hanneman, who had run such scams as Proficient First, International Arb Trading, International Sports Online, Tablink Sporstbet and Excellence IV.
18 May: The Age reports on the raid on Betjack
NSW police had alerted the QLD police to him as far back as 2011. The ABC did this report in 2013: http://www.abc.net.au/news/2012-09-13/victims-angry-gambling-scam-still-operating/4260558