After 34 days, still no stable ADSL at home. Numerous calls logged

<p>Telkom upgraded my ADSL line on 6 January 2017 to 4 mb/sec. Since then the line has been unstable. Numerous calls logged. Seems like the technicians cannot solve the problem. And I am invoiced for an 4 mb/sec line, which I still need to see and utilize. Call 726ctk310117 still open. My telkom voice number will reflect how many related calls I have logged since the 6th. I make screenshots of the download speeds on a daily basis. Varies from 0.4 to 3.1 mb/sec. Jumps all over. When will telkom get this fixed I wonder. On a 2 mb/sec line I had a consistent 1.7 mb/sec download speed for over 4 years. Why can telkom not get a 4 mb/sec right. Poor s****?</p>