Poor service and unwilling to assist

I am currently trying to get a new phone added to my account. Today I have been into the brach twice, and phoned the call centre 5 times. The branch has so far sold me a pay as you go contract SIM and added a new number to my contract, and neither of them work. The call centre keeps telling me to go back to the branch, but all they do is sell me another SIM or another contract, neither of which work. I am now paying for another contract and have a pay as you go SIM and none of them work. Vodacom has very efficiently taken my money, but I am still without any service. I have just called the call centre again, and they have told me to go back to the branch. How is it possible in today's world not to be able to solve such a simple problem. I have been with Vodacom for almost 20 years, and have never had such poor service. The staff are extremely unhelpful, and I now see that the branch staff gave me incorrect advice, just to get me out of their store. Sadly I will be taking my business elsewhere from now on.