Unacceptable Telkom Service

We report a fault with Telkom on 23 August 2018. The line is so noisy that you can not hear the other person talking and we need the landline, because my mom is a cancer patient and we need the line to contact doctors and hospital (Cellphone bill is getting way to high to do all these calls). They were here once to check the line on our side and found that the problem is on our side, but other then that we haven't had any feedback. Yet we still have to pay the line rental every month, despite numerous calls.

FYI: We are paying full price for services that is subpar.