Vox who

we have been contacting Vox and Telkom for several weeks now as our ADSL line appears to be malfunctioning leaving us with no access to the internet for at least 75% of the working day. <br> last week the Telkom technician came out to test the Telkom line. there is absolutely no problem with the line or the line speed and yet Vox continues to point fingers at Telkom. <br> so after a great deal of frustration we still do not have working internet access. what do i need to do to receive a working service that i continue to pay for. this is absolutely shocking!!!! I am unable to do any work at all!!!