Terrible service and Hard to cancel

I took a month contract with these people and the internet only worked for 2days yet billed for the whole month. Its impossible to get hold of these people, you constantly have to watsap which is so useless. I then decided to cancel the next month and I was told to first pay the December bill which I did but they still didnt cancel. They then told me to drop the router in centurion before cancel, I did that and guess what still no cancellation. Then they said I need to pay 1000 before cancellation. Then someone called to give 2months free service but I disagreed. This morning I woke up to an invoice from them of 2700 for cancellation. I dont have internet in my home because of these idiots. Im super annoyed and I hope no one else makes the same mistake as me to use web africa.