I'm also in Australia. Have received a text from +6100000000 for last 3 days. It says "Dear Winner, Your mobile number have won you the total sum of $500,000AUD. For claims Contact
Email:
[email protected]". I tried to text back saying "STOP", as you do to stop other unwanted texts/promotions, but it would not send to that number. I'm contacting my service provider to see how to stop it.