Bad landline since Supersonic took over.

My land line was installed in March 2009 when the company was still Smart Village and have been working very well for more than 9 years now. Lately I have a very bad line with a lot of noise that is so bad I can not use my landline anymore. I reported the bad line to Supersonic and after a lot of stories I was told that the position of some equipment of them( that was installed in my DB box since 2009) have to be moved as the electricity near the equipment are the problem why my line is so bad and that everything have to be done at my own cost. According to Supersonic the problem was solved which is not so: (email from them) According to our records, R-006977 - has been resolved successfully by Bheki Nhlapo. Now I want to know : there was never a problem with the line when the company was Smart Village and suddenly since they changed to Supersonic there's a problem and I must pay to fix it. This is unacceptable and if they do not fix this on their cost I will cancel my service with them. I am not impressed that all was well when Smart Village handled my line and all change when Supersonic took over.