Telkom undeliver again!!

Our Telkom land line and adsl line is on and off since 12 July 2015. Many phone calls were done to report it but every time a different excuse were given by the call centre support. I even had to buy new data because that was also a reason given for adsl not working. After another phone call it was explained that data was not the problem and it was unnecessary to buy it. The land line was very noisy and sometimes had no tone to confirm an outgoing line. Now my adsl line and telephone line is totally not working. What else must I do to get someone competent to see to it? I am working from home and influence my income. According to an agent I was told I am not priority because it is registered under residential. With all due respect my account is up to date and also bought unnecessary data with *********** advice by call centre due to the fact I am working from home.