Oh, I haven't had that problem. They let whoever answers the door sign here. The problem I have had with the Startrack couriers is they often don't even knock on the door, they just leave a "sorry we missed you" card without knocking. Last time I actually caught the guy walking away after he did that and he said he didn't knock because he assumed nobody was home given there was no car in our driveway.That's been my experience as well. Startrack/Australia Post are absolute nightmare when it comes to signatures. They don’t even let my wife sign for goods that have been ordered in my name.
At least the advantage of Startrack is they do deliver to PO boxes (which is my preference), whereas the other courier companies don't (or AusPost won't let them).