Telkom Fibre bad service

I needed Fibre at my house, the day they installed it , I cancelled with immediate effect as the guy that installled it in Nelspruit Tony said to me that it is not his problem if it doesnt work correctly as it only worked in the top part of my house. I have phoned Neels of nelspruit branch and said that I needed it to be removed. He refuses to reply to my messages to date nothing has been removed from my house, I am still getting a bill on something I have plugged out and dont use, and asked another company to give me WIFI. I have even spoken to people from Telkom on facebook this thing keeps circulating and I still receive bills, we are going on to two months situation has not been sorted. As far as I am concerned when someone install something at your house like WIFI they need to ensure that it works. Company installing it is OPENSERVE I think