Paying for non delivery of service

My home line has been faulty 5 times this year. The latest episode has still not been resolved after almost 2 months. However they still expect you to pay for non service delivery. I have requested the discontinuation of the service on 16th of October 2017. The references are as follows: TIN ********** : ********** and ********** 206 : ********** . The line is stil faulty and i have had no further notification regarding the cancellation of this service. Wake up Telkom you are clearly sinking.