Cell C Sim Issues and Bad Customer Service

I am extremely disgusted at the fact that I have to keep calling cell c for a factory fault sim and no can help me. The manager of the call center has also not called me back.This kind of service is unacceptable & people should know the pathetic treatment that is received from Cell C!!!! I got the New phone and the sim in December 2020 - as of the 15th February the Cell C sim just goes off. I then had to purchase air-time from another service provider to call cell c, I was then told to try the sim in another phone, still the sim does not work. I then called back and was told I need to pay R50.00 to do a sim-swap. I am paying for an expensive contract of which I cannot use!!! And now due to the Cell C sim fault issue I need to bear another expense and pay R50.00 and go to a store to buy another sim card - Stores don't just sell a sim, a person needs to also purchase air-time to get a sim!!!! This phone & sim is only 2 months old, this should not be happening, the Sim was never taken out of the phone until I was told to test the sim in another phone. It's almost 3 weeks and I don't have a working sim that I am paying for. Cell C customer service cannot help with this. then who can? I don't accept the fact that a 2 month old sim is damaged, I could have received a faulty sim that was the issue to begin with and just gave up now!!! Issues like this should be covered on the T&C's, for both the customer as well.