Cell c poor service

I have experienced the worst service from cell c. I am terminating my sim card as soon as tomorrow morning. I lost my sim which I had a month to month contract with them for unlimited calls. I went to a branch at woodmead to do a sim swap which I did and paid for R150.00. I was then informed that the sim will be activated and fully functional with 4 hours. It's now 7pm and I had done this at 10am.

I tried to call the call center to have this sorted out but I was informed that they will charge me a further R150 for something they failed to fix first time when I went to the branch. I am extremely disappointed and angry as I use this number for business purposes.

Tomorrow I will be canceling my relationship with them as I cannot have my business fail because of *********** cell c consultants.