MTN LTE No internet for over a week after installation

I recently bought the MTN Unlimited LTE package with a new router. It has been more than a week since I set the sim and router up, but still no internet connectivity. Gonna be quite furious if I get billed for this period, as I have not been able to use the internet at all... Giving them another day or 2 to resolve the issue otherwise I'm moving to another ISP.