Were you advised by a solicitor to write "not stated" for father on the birth certificate. Is it acceptable, normal practice to use a stat declaration if one chooses not to put the father's details?
When we filled out the form for the birth certificate I think we wrote "donor" under father. They sent it back, requesting the stat dec. The stat dec had to declare that DP conceived via self-insemination, she has never lived with or had a relationship with the donor, and they have never had sex with each other.

When the birth certificate came it had DP's name under mother, and "not stated" under father.

We are in SA by the way.

When DP first applied for family tax benefit at Centrelink we had to meet with a social worker (we knew we had to do this, and told THEM that's what we had to do), tell them there was nobody legally responsible for child support, write a statement, and away we went.

If you have the donor's name on the birth certificate they will go after him for child support etc. Our donor's name is on NOTHING. We do not tell anyone at all his name.