I too just got my CCR/CCB only and waiting on FTB and FTA.
The reason being my DH and I both submitted our Tax together so it needs to go back and forth a few times between the tax office and Centrelink to make sure we are being paid correctly before we get the payments.

Have a look at this link..Briggsy Girl has explained it just perfect.

https://www.bellybelly.com.au/forums...illiation.html