I called back number 0428 613 448 spoke to a guy but did not hear him properly when he said the company naem.

Debt collector scumbags, turn up all hours and harass decent people. Should be shot. Their employees are low class bottom feeding vermin with zero morals or decency.
They leave countless cards under your door or at your workplace with a message saying please call Tim. They don't mind hurting people at their workplace or by phoning friends and hassling them too. Forget the rules, these guys don't play by the rules, lets turn up after 8PM at a targets house.