I haven't received mine yet, even though I am expecting a direct deposit into my bank account.
I went to the ATO website to read up about it.
The payments will be sent out up to may 16, and the ATO advises people not to contact them about non-payment until at least may 16.
Be patient, it will come.
The question is, what will you spend it on? I'll be spending it on a Skywatcher 70 x 900 EQ1!