If you log in to online services, go to "Family Assistance" in the left menu bar, and then "View Family Income History" - Select 2012/2013 from the drop down menu. It should have your estimates, plus your actual income (if ATO have done their part).
I received mine within 4-5 days of lodging DHs tax (online around the 4th of July). I rang centrelink July 1st to inform them that I wasn't lodging a tax return too. I've always got my centrelink before DHs tax return hits our account.
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