I feel you, I had the same situation, I just pushed the point when during a fb update I saw some of my items mentioned and kept pushing the point, mind you kept it to one email a month and only drove the point harder when they did make promises.
I did eventually got my orders and an apology as they accepted fault for not keeping up, but one thing to note is when I (often) suggested a refund they just dodged that entirely, and there was something else with my last order that was strange, maybe because I got my notification that it was coming 3 days after our email exchange but no tracking I can't quite remember.
I stopped trusting aussie retail after that, except for zing, but thanks to their cost and slower delivery windows I'm just slowly backing out of the hobby, only way to recoupe what I lost with PC...**** that guy who ran it, still makes me rage