Worse Service EVER

Patricia and the rest of the Vodacom call centre staff are the most unprofessional and most *********** client care staff I have EVER dealt with. I have been complaining about the same thing over and over the last few weeks and every single time I get told that they are unable to assist (so what the hell are they doing there?) and that they will need to get someone to call me back. Everytime I was told the call back will be within 24 hours and every single time I simply never hear from them again until I call again just to be told the same story again. What must I do to actually get a matter resolved with Vodacom? Bomb one of your shops?