Found the following on the RAAF Museum website.
Just one Jet Provost served in the RAAF, that being a T2 model which was chartered to enable the service to evaluate "all through" jet training. The aircraft, serial A99-1, was used by No 35 Pilot Training Course at 1 Basic Flying Training School, Point Cook, and two students were selected to be trained on the "JP" while the remainder of the course learned to fly on the Winjeel. At the end of the six month course the aircraft was presented to the Sydney Technical College as an instructional airframe. The Jet Provost was not ordered by the RAAF; instead the service continued to use the Vampire until it was replaced by the Macchi MB-326 in 1967.