Vodacom - 1st for very, very bad service

I have been struggling for several months to get Vodacom to resolve 2 problems that I have with my tablet. The 1st problem concerns 4-5 meaningless SMS's that I have been receiving daily from them for several months now. I receive about 5-10 of each SMS daily, amounting to 1000's by now. Apart from the nuisance factor, I have to spend a lot of time sorting my own messages from what amounts to worse than spam. An SMS is generally generated after I have complained to them about an issue, and there have been several. The other problem concerns the free data I am supposed to receive from them monthly. It is too lengthy to explain in this forum. I have phoned the call center several times and have been referred to a branch. The branch then takes down the details, gives me a ref no and then reply days later with a meaningless SMS that goes nowhere near to even addressing the problem/s. I have had limited success with them, after threatening them with Hellopeter.com but it does seem as if they are opting to ignore the issues until the contract expires at the end of FEb. Is there any \Watchdog"or Ombudsman for the industry? There are other issues I would certainly like to raise."""