no delivery of device

My grandfather took out a contract for me on his name on the 13th of May 2015 we gave our address and confirmed it 3 times with the consultant. The next day a guy phoned me and said my device will be delivered on Thursday. Friday morning I phoned Vodacom to ask where my phone was and they said there was no delivery address given to them. So they send ram a email I phone ram on Friday there was no email received from vodacom. So I phone vodacom again and they said the device will be delivered today 18 may. I phone ram this morning to check the status and the device was sent back to vodacom due to no delivery address. Vodacom wouldn't even phone me to tell me they are missing info regarding the delivery address. If I didnt call they probably would have me pay for goods I haven't recieved. Now im only getting it on Thursday due to their incompetence. And all the supervisor can say is sorry its unacceptable! I am so gross that I want to cancel all of the 4 contract we have with them!