NO CLIENT SERVICE

I pre-ordered a vr headset with the upgrade of my mobile. I have received the mobile but not the headset. I have contacted these *********** fools 9 times just to be told someone will phone me back before the end of the day. i registered 04/03/16.....we are almost at the end of APRIL already. the manager Nhlahla is going to get back to me, as well as Ernest, Samuel, Silo and Gregory. they told me to contact head office and complain to anyone that answers the phone. their service has left a bitter taste in my mouth and Cell C or Vodacom will be getting a new customer. what does a person have to do to get customer satisfaction??