Slow or No Internet, Bad service from Call Centre

I have been experiencing slow internet or non at all. Each time i am asked to reset my modem and do a speed test.Cannot even do the speed test most times as i cant get on the web page due to the slow connection, A technician comes out and see's the same problem and advise the problem is with 'The exchange\ and few days later i get a message to say the query is resolved but no follow up call from ANYONE in TELKOM to confirm this. I wait over an hour each time to go through the call centre which is damn ridiculous as my life does not revolve around TELKOM. When someone eventually picks up