Unbelievably inefficient

Vodacom has continually provided me with the worst customer service that I have ever experienced. For over 3 years I have tried to update my address and I still continue to receive my statements with the wrong address, which of course creates a problem with my SARS submissions. With every phone call I spend at least 40 minutes on the phone just to discover 2 days later the request was not even logged or tended to and I'm back to square one with the wrong address. Unfortunately every Vodacom representative I speak to simply shows no interest in actually resolving the issue but repeats the same robotic phrases that are so deeply unhelpful that I am now cancelling my contract with Vodacom and can't wait to have a Vodacom-free life again. A simple task of updating an address and receiving my statements should quite simply never be so difficult. I cannot imagine how this company runs if it cannot complete this simple task. I'm so disappointed and frustrated and feel they should be ashamed at their pure disinterest in their customers. They really aren't worth the over priced rates that they charge.