We were approved on 18th June but so far have heard nothing for a ceremony (Randwick NSW). Have been told the wait is 3-6 months but a phone call to DIBP today indicated that were were not on the November listing and unlikely that we'll be on the December one either. So that will blow their 6 months. But then they're not bound by that. Even though they'll then say you have to do it within 12 months - but they are restricting you to a smaller window. We wanted to take a trip home in December and the wife wants to take extended time there for a few months as she's on maternity so it's a bit frustrating.
Quite why these government departments don't have service levels I'm not sure.