1 month and fault still exists

I have reported a noisy line to Telkom for the last month. Every time a technician comes out and fixes it but less than a day later the same issue exists. The noise on the line is so bad that you cannot use thebphone to call or receive calls on it. I have now paid for a month when I couldn't use service. Even today Inhad a technician at my home and the problem still exists. Telkom close the service request without checking with the client if the issue is resolved. Are there any competent technicians at Telkom who actually take pride in their work .