Dead ends all the time.

I gave in my phone for repair at Vodacom middelburg around the 2nd of December 2015, from there I had no feedback from vodacom whatsoever! Every time I call, the lady who booked the device in, is either on lunch, or on training no matter the time of day, and no one is willing to assist, as they claim they dont know what is going on there, or to work the systems, exept for one ,jason, who advised me to call the repair centre in highveld mall witbank, as this is where they send the devices for repairs. On this day I have phoned the repair centre about 20 times with no answering. I left a detailed message as asked, and no response whatsoever. I'm not even sure if I do have a phone anymore, because of the fact that you get to a dead end each and every time. Can someone please assist.