This is a number of a debt collector. They are skip tracers. They will lie and scam you to get information about someone.

I just had a Dina from Telstra call from this number wanting to get in touch with someone with same surname but i had never heard of the person.

Caller: Dina from Pioneer credit she said

They just called me asking me to get in touch with someone I know and to tell them to call this number… how do they even know I know that person ?

Caller: Rosie

Returned the call on (08) 6214 2491.
Rosie took the call. Credit collector, scam bug! I don't owe anyone! Will report to ACCC, Vodafone credit collection reps kept harassing, (calling using different mobile and land line) people who no longer have their service. STOP, Rosie! STOP calling me Vodafone!
Best to go with Telstra, Optus and other smaller Aussie telcos.

Roslyn left message with daughter. Said my accountant. Rang back - Pioneer Credit. Told them to stop misrepresenting themselves!

I called back number (08) 6214 2491 just kept on ringing no one answered the call and never got any voice mail.

I called back number (08) 6214 2491 rang 3 times then goes to busy tone.