Called on the home phone first, said they were from South Melbourne and conducting a survey on how many people were working in the household. Wife told them that she wasn't going to answer any questions and they hung up on her. They phoned my mobile an hour later with the same story. I asked her who they are and she said a company called information management and once again asked about how many people were working in the family as a survey of the area after the GFC. I told her to check last years Census for the answer and she said they were doing it as Census follow up. She got upset when I told her I wasn't going to answer any of her 30 seconds of questions and she hung up. They fish for information for a follow up sales call a few weeks later, as I have dealt with these types before