He phoned and proceeded to ask a lot of personal questions without first giving justification, or reason. Do you have, Do you own, Are you the owner etc. When he kept asking questions I told him I would not respond as I did not believe he was a genuine Telstra Caller that he claimed to be. I said if he was real he would know the answers. He immediately became rude and made threats amid other comments he said in very aggressive voice; I will make you believe me; and abruptly ended the call.