So many people get caught by scams and yet the ISPs don't seem to care.
What interested me with this cam was the email address they used to send the email to me. It is one I use, but rarely hand out. The email address doesn't contain my full name, but as you can see, the To field for the email does use my full name. That adds a level of legitimacy that could trick people. I don't have a Telstra account where Telstra can bill me, so this is an obvious scam.
When you receive emails don't just click on the links. Stop for a moment. Check the links by moving your mouse over the links and the address will appear. In many scam emails some of the links may be legitimate, but one or more you are meant to click on will send you to an unrelated address that has nothing to do with the company.