poor repair service

My line goes through webafrica, but their service is fine, however my line has been so unstable and it is frustrating me. I call or mail webafrica they complain to telkom .. It took 3 weeks before it got assigned a technician. He came to my premises and could see it is an issue at the exchange. He said he would get someone on it. . I called once a week and everytime i got a call from telkom asking if my line is working i explain its unstable disconnecting me all the time. eventually i got someone on it and said he did something which never helped.. anyway someone on saturday when i wasnt even home apparently worked on it .. didnt call me or say anything i get an sms late afternoon saying its resolved and now a month later i have closed tickets and still sitting here getting disconnected .. Today i have been lucky to stay on for 2 min before i get dropped. I am hoping i wont be waiting another 3 weeks for telkom to assign a technician and i hope its going to be fixed and not just closed as resolved.