Terrible customer service & wifi home router

I have been cancelling a month to month contract from the 17 July to date but nothing seems to be happing their customer care email feels like you speaking to bots mind you I’m still paying for this Wi-Fi that I am not even using because it’s still incurring cost

I have a second home Wi-Fi I took upon cancelling the first one which I have to be paying R256 however the invoice came as R885 When I question why I’m told of once off payments (which I paid upfront before getting my router) and they still billing me for the home Wi-Fi that had to have been cancelled by 09th of September but it’s still active and I’m paying for it

Complete ******* this is. They say cancel anytime but three months later I’m still paying for a router I’m not using the current one is TERRIBLE the connection is bad. Even with only the tv in use it pixelates. I’m actually going to cancel this one aswell cause it’s not worth having