u/Saharahahaaa

Hi there, I have recently applied for the family tax benefit however centrelink is asking me for an income estimate, despite the fact that I am not working as I have a three month old baby(who centrelink still hasnt added to my account despite being properly registered) I am on parenting payment single which is my only income and even after having a phone appointment today, it ultimately did not help at all. Edit: how do I go about getting an income estimate on parenting payment single. And what document would I need to fill out to submit to them for it?