I called back number (08) 6214 4545 reached IVR for a company called Pioneer Credit.

Didn't even identify themselves when called but I found them on the internet. They harass me daily with calls on my mobile and work phone about someone else. I have told them I have nothing to do with them but Pioneer Credit still keep harassing me with phone calls and now my email. If they contacted me one more time, I will report them for harassment and breaching my privacy.