I received my licence about a month ago and it was approved exactly 29 days after them receiving it. Then add an extra 3-4 days for the photo advice to arrive in the mail and I had my licence ready to send my first PTA. When I did my licence course I was given the advice to send as many offical documents as possible to not have any delays in the processing. The extras I sent were pictures of my r-hunting licence, drivers licence, junior firearms licence and SSAA membership card.
Cheers