No service or repair

I reported my fault to Telkom on the 16th of October 2017 - I have no WiFi. After countless calls to the call centre, my WiFi is still not fixed. This is now over a month that I have been paying for a service that I have not received. Trying to get any action is so infuriating! I have spent hours on my cell phone yet always given the same response. No one can tell you when the fault will actually be resolved. How can it possibly take over a month for something to be fixed? I just want to cancel my contract!