Having a gun pointed at your head to pay for poor service

I have been a customer of WebAfrica for a long period. After my router was struck out by lightning beginning of January 2021, I had to wait 2 weeks for a new router. I still had to pay for those 2 weeks although I got no service. After they dropped the new router at my house, my signal was very poor. They were also more interested in getting back the old broken router than assisting me. I cancelled my service on 1 March 2021, but WebAfrica forced me to keep paying until 30 April - R819 a month for very weak signal that drops about 10 times a day. They also threatened me to courier their router to them at my cost or they will charge me a substantial fee. Then, a Heinrich guy from WebAfrica phoned me, apologised and says if I don't cancel they will fix everything and give me a free month. I refused to cancel and then WebAfrica continued with their poor signal. In other words I must pay them R819 per month for March and April 2021 for a very poor signal that drops numerous times per day. How is that for being threatened with a gun to your head! So WebAfrica takes 2 x 819 from me without the promised service because I cancelled with them! They take my money and simply continued with their poor service. From this past weekend the poor signal stopped - I now have no signal at all!! I also cannot communicate with them because they don't accept emails. They reply simply as follow: "oh no, emails are so yesteryear!" Their whattsapp service is pathetic - that's why I had to wait 2 weeks for a new router. 2nd time around I was actually told that they never received my request although I have the whole conversation recorded on whatssapp with their employee. All I can say everyone, please don't take out a contract with WebAfrica - you will regret it like me and pay for poor / no service. They take one's money without delivering the service, then apologize and then just keep on taking one's money without doing anything.