I called the number (02) 8071 3572 back. I got a company name Employers Mutual. Based on their IVR, their website is employersmutual.com.au. I spoke with Rhianan and she said they are not marketing anything. She said that they are an insurance company that do work cover for emergency cases like employees getting an accident at work. She said that they got their numbers from NSW police or fire brigade.