This number also called me. Appears to be from Curtin University Health, Research Dept.
http://healthsciences.curtin.edu.au/health-sciences-research/contact-us/

"Research student enquiries

Email: ResearchStudents @ health.curtin.edu.au

Phone: (08) 9266 7652 / (08) 9266 9256

Fax: (08) 9266 2464

Location: Faculty of Health Sciences, Graduate Studies Office, Faculty of Health Sciences, Faculty Student Services Office, Building 401 Kent Street, Bentley
"

I called back number (08) 9266 9256 rang 3 times then goes to busy tone.