It seems the people who applied for the Perth base right at the beginning of the recruiting phase were asked for interview quickly (interviewing around the 12th and 13th of May) and given positions before the closing date for applications had even passed. I know at least 3 people who did this. They're starting ground school on the 9th of June. I also know people who applied right before the closing date and haven't recieved anything, even those with experience in aviation already under their belts, myself included. Seems they got all the numbers they needed early on in the recruitment period and have filled the June 9 ground school already for Perth.
I have heard that they want to do another ground school in September so maybe in a few months we might be lucky enough to be contacted!