Faulty line on installation

I have ordered a 4Mbps data line and had to call 5 times to finally get the order processed.<br> <br> Installation was done yesterday 02/12/2015 only to find that the technician installed a 1.7Mbps faulty line that constantly drops connection and have an unacceptable noise level.<br> <br> I challenge customer care to try and get hold of the technical department... you get placed on hold for 20 minutes at a time only to get the call dropped.<br> <br> I ordered and will be billed for a 4Mbps data line that runs stable, I expect nothing less as Telkom quoted me their tariff and will also accept nothing less.