repeated visits service gets worse

I have constant fuzz on my Telkom line, it repeatedly stops working (today for the 3rd time this month) , and it usually only rings once when someone calls - about 10 different technicians have been, they keep leaving telling me the problem is fixed, and it never is.<br> Notably I keep being charged for a non-existent/below standard service. Is there no technician at Telkom capable of ensuring that we can have a normal working Telkom line? What is so difficult about this? This has been going on for months.<br> <br>