There are a number of scams being reported using the Tax Bonus, the ATO or Centrelink as a subject.
The ATO says "There are many different types of scams – online, phone, mail and face-to-face. Online scams, such as email ‘phishing’ scams are on the rise and are designed to trick you into giving away your money, passwords and/or personal details (such as your tax file number - TFN)."
"...under no circumstances should you give personal information including credit card or banking details to these callers or in response to unsolicited emails. Anyone who has received a suspicious phone call or email should contact us [the ATO] immediately."
David Maynard