One month later - worse service

I first logged a fault on 12 October. Service was intermittent - either phone or internet or extremely slow internet. i was told this was due to an upgrade at Rynfield exchange. A month later and the service is worse than ever. Internet is so slow that I can't even run a speed test. <br> Technicians and the call centre have confirmed that the problem is at the exchange. How long does it take to fix a fault? At about 2pm yesterday, the phone would repeatedly ring twice and when I answered would go to dialing tone. <br> Enough now! I am paying for a service that I am not getting.<br> At least the call centre staff have been very patient and have tried to do what ever they can, including calling back when Telkom cuts the call and the line shrieks!