Disgusting service

Two weeks ago my phone network stopped working. I took it to Cell C Ballito to check what was wrong and they advised that the sim card has been damaged and i need to get a new sim card and call the call center to do a sim swap, which i did. They advised me that someone will call within 24 hours to activate the card. I am still waiting now 8 days later. I have called numerous time but all they can say is we will send an email to that department to call you. While i am waiting for their call i am losing out on business as people cannot contact me. I regret changing my network. Cell C has made my life miserable and has caused me to loose a lot financially. I want out of this network!!!