A Month and a half just to do an upgrade

I received no real feedback from Vodacom after my first complaint, except that they would get back to me but it's now been a week and a half and their customer care line also could not help me. After the online sales dep. (Kugan) gave me the wrong usage information and the wrong contract, I luckily double checked the details and cancelled, but by the time they cancelled the old contract I could not get the promotional item (speaker) anymore as the promo was over - but this was not my mistake. Then I went to the Vodacom shop in Tyger Valley cause after finally getting my new phone, there was an echo on the line. They had to send it in and what was supposed to take 3-7 days, took 11 and no one bothered to let me know even though they said they would. Then the new phone had the same error and the problem had all along been with the sim card, I had to then buy a new one (R70) even though this was also not my mistake. I am so fed up with this bad service and wasting my time and money and not even responding to my complaints. I'm not the type of person who complains easily, but I've been a loyal customer for over 10 years and I deserve better service than this.