WIfi cancellation Feedback

I took out WiFi from Telkom in August for R199. WiFi was working on an off. Telkom billed me more than that. Services was add that was never explained. I'm charged for September but the WiFi is not working. I complained and complained but nothing. I cancelled it but no feedback. It is middle September and WiFi still not working. I will only pay for August. I'm waiting on feedback with regards to cancellation no response from Telkom since beginning of the month. Telkom is a bad company when it comes to services. I just want to get rid of them. This WiFi issue is more stress than joy.