Constant Landline / ADSL Issues

I have been experiencing issues with my landline since June and logged our first call on 4 July and if there is any resolution is will be for about a day but not even fully.

Our landline is constantly extremely loud static (with no dial tone) or the constant crackling (if we ever get a dial tone) or no dial tone at all and this affects our ADSL. We have reported faults numerously but still the same issue is not resolved. We considered upgrading our account to the home unlimited but at this point we are considering cancelling Telkom altogether because we are being billed for a service that cannot be used.

We constantly get messages saying that Telkom is attending to the issue but when are they going to resolve the issue?