Vodacom non service

My data bundle was depleted in two days last month and the same thing happened this month. I've had the same bundle for longer than a year and hardly ever run out of data certainly not by the middle of the month. In mid July the call centre registered my problem and assured me a technician would get to it within two weeks. Nothing happened. After the bundle was again depleted this month without ,me hardly using it I went to the Vodacom shop in Musgrave with the pc and ****le. That was a complete waste of time, they could do nothing except tell me to phone the call centre. Later in the afternoon I phoned that call centre and went through the whole problem again only to e told that their system was down. When I suggested the operator call me back when his system was running again he told me that he could not allow me to jump the queue. So it's now going on for five weeks and nothng has been done. If this is SA s best cell phone company, dear oh dear.