BAD SERVICE AND NO RESPONSE DESPITE MANY CALLS

Have issues with my ADSL line and my home landline and for nearly a month plus Telkom has not been able to assist and yet that their billing department carries on sending you bills for services you have not consumed. There is indeed a disconnect between the billing department with their sales team. How come that you subscribe for an X monthly fee under a contract and you are being billed more than what is stated in the contract. Despite many walk-ins at their shops, calls at the call centre the issues have not been resolved. I indeed need my landline to be operational and my ADSL line to be restored like NOW>