Paying for a 10meg line and getting nothing

<p>We have been with Telkom for a few years now and we currently have an uncapped 10meg line. WE NEVER GET THE SPEED WE PAY FOR. When we email to state this the problem is fixed very quickly, but if it can be fixed so quickly why is it happening in the first place. I might also add that when it does get fixed we get the 10Meg strength for about an hour before it drops down again. We work from home and we really cannot afford to have this shocking bandwidth!!!!! FIX THIS IMMIDIATELY!!!!! WE ARE PAYING FOR A SERVICE THAT WE ARE NOT GETTING!!!!!</p>