unable to reconnect my contract simcard

Vodacom has been unable to connect my simcard for 3 days now after doing a simswap. I have been calling them with no success. They just say to me it is connected and I must restart my phone. When I do that, nothing happens. Then I have to call again and they say it was the system but now it works. I must do the same procedure. Again whet I do it and no results, I call then they tell me the same thing. I am losing business calls and I cannot reach my clients. This will negatively affect my income. Can someone please assist me in finding a way to get Vodacom to help me? Thanks