Phone and ADSL line Fault - 3 fault's in 4 weeks

My Telephone line went dead 4 weeks ago. It took more than a week to repair and 3 days later the ADSL section of the line died and this took a week to convince Telkom that it was a new fault and not the one that had been repaired already. Then another 10 days to repair. Now the line is faulty again intermittently on and off. As I am trying to run a business on this line the impact is horrific. 3 Faults in 1 month with the line more off than on is unacceptable. Add the frustration of a call centre that takes a minimum of 20 min but more like 40 - 60 min to answer your call it's ridiculous.