Terrible Internet Connection

I'm so appalled by MTN's internet connection. It is so poor that the speed is forever on 0mbps, both for the Home Router and Smartphone. When you call them, none of the "service champions" can help because they are as clueless as it gets. I spoke to one Zinzi not too long ago and she knew ABSOLUTELY NOTHING. Kept asking stupid question and told me to switch off my devices for 5 minutes. I've been complaining to them about this for close to 2 months. Honestly if it weren't for contracts that are binding me to them, I'd be long gone. What surprises me is how the network coverage department can work on weekdays only when the business itself is about signal. This is just stupid to say the least.