Pathetic Service by Mtn

I did a sim swap on Thursday and my sim card is still not activated after speaking to the store on numerous occasions and speaking to the MTN call center no one seems to know what they are doing this is a joke!!! The store says head office has activated the sim after a error occurred and the call center doesn't pick up a sim swap. I am sick and tired of chasing after MTN this is ridiculous its like I am asking you to do something totally new and unheard of. If you cannot provide the service that I require terminate my contract so that I can go elsewhere!!