Very slow internet, no help received.

I've recently bought a 2mg line from Telkom and I have a problem. The line is tremendously unstable. We go from a high of about 240kb/s (slow right) to so slow that the internet is unable to open a web page and is unable to perform a speed test. The ping comes back as 600mS and the test can't even complete to tell me what the download and upload speed is. <br> <br> After phoning Telkom and speaking to 4 operators, all of whom give me different reasons for the slow and unstable line, I'm terribly upset. One of the operators even **** to me, telling me that technicians are working on the lines at the moment and the problem will be sorted out within a day. I phoned immediately after to speak to a different operator and they denied that anyone was working on the lines that day. That was also two days ago. <br> <br> I just want a straight answer, without getting the feeling that the operators just tell you whatever it takes to get you off the line. They clearly have no idea what's wrong. <br> <br> Why am I paying for a service that is not being delivered? You are taking my money for a a broken service that you don't even know how to fix. Help me or cancel my line. I will not be treated like a fool.