TELKOM'S BAD SERVICE TOWARDS CUSTOMERS

I have been struggling for two weeks with getting my sim swap at the store in Klerksdorp. I've contacted the customer care but no one is helping out the sim card does not connect and can't get calls or messages because it doesn't work. I've done 5 sim swaps on the same number but nothing seems to be working. What disgusts me more is that I am gonna pay the cellphone contract with the sim card number that doesn't work. I've been running around daily to the store and no one is doing anything about the matter including customer services yet you expect us to pay. What for poor services that you render unto us? I even lost a job because I couldn't receive calls due to a number that doesn't work. PLEASE ATTEND TO THE MATTER NOW OR I AM CHANGING THE SERVICE PROVIDER. This has been going on for full 2 weeks now