Refusal to Cancel ADSL line

Telkom is doing their utmost best to avoid cancelling my ADSL line so that they can continue to charge me for a service that they are unable to provide.<br> <br> An overloaded exchange box on the corner of our street means that we are completely unable to connect to the ADSL. After speaking to the technicians it appears to have been a problem for over a year.<br> <br> How can you charge someone an installation fee and then continue to bill them every month for a service that you where unable to provide in the first place?<br> <br> Reference Number: 562CWK050215