I called back number (08) 6214 4540 spoke to a woman who said company name is Pioneer Credit.

This is Pioneer Credit, a collection agency. They are chasing after my son who has moved out and I have nothing to do with any more. They are harassing me and other members of my family at all hours of the night and have also called my neighbor asking questions. It's the most disgusting, vile business policy to be harassing people just because they are related to someone. It shouldn't be allowed