Unsolicited call marketing

I received a call on Wednesday, 3 February 2016, from a Old Mutual call centre employee trying to sell me an investment product. I am not an Old Mutual customer and have not given any permission for direct marketing from Old Mutual, which is, to my understanding, against the consumer protecting act.<br> <br> I thus requested that the origin of my contact details be disclosed by the employee (Steven Mawelela), which conveniently could not help me. He gave me the contact details of his manager, a Miss P. Zimema, which he informed me would be able to assist me with my query.<br> <br> I emailed Miss Zimema on Wednesday and still have not received any feedback regarding the origin of my contact details and who has given permission for Old Mutual to do direct marketing to me.