Business ADSL speed not attended to a week later

To whom it may concern,<br> <br> Telkom installed a 10 Meg ADSL line for our new business premises and we began trying to use the ADSL line on Wednesday 25 March 2015. As of today, a week later we have had no-one able to resolve the problem for us and the speed is extremely slow which is affecting our business. <br> <br> The speed which we are getting is about a hundred times slower than what the line is capable of. We have tried our router and ISP details on a different line in an office about three blocks away and the speed is perfect, and thus we have eliminated the ISP and router as being the issue. The issue clearly lies with the line or exchange (Telkom issue).<br> <br> I look forward to the speedy resolution of this issue as it is seriously affecting our business.<br> <br> Kind regards<br> <br> Charles