Dont sign up 10mbps if you are in an older suburb

For the last 18 days I have had an open call on Telkom's ADSL for poor speed, voice cutting out during calls, noisy lines. I have 4mbps ADSL. Yesterday the tech support people told me that the \copper"in my area cant support 4Mbps let alone the 10Mbps that they have been trying to sell me. The technician who came to the - house said the same thing. So I have cancelled my 4Mbps and downgraded to 2Mbps. They are lucky that I don't can their ADSL completely. Telkom's sales response - OK. Telkom's technical response - static."""