Paying for a 10MB Line - only getting 4.5Mbps!

We had lines installed and it seemed that we were not getting the service we app**** for.<br> Our application was for a 10mb ADSL line & upon doing a speedtest at [URL Removed] (recommended by Telkom)the results showed that we were consistently getting between 3 and 5MBs download speed.<br> We logged a fault via the website in the last week of May to which we received no response.<br> We then logged a fault via the call-centre on the 1st June &were told that a technician would be sent out to check the line at the exchange and make sure we were getting a 10mb line. An sms was sent to us on the 01/06 stating that Telkom would endeavour to resolve the problem within 8 days. Then received another sms on the 8th stating that the fault was in hand with Telkoms technical repair division.( REF: Fault 629CWK010615). We then received a call on 10/06 and the consultant said that an \offsite"test had been done"