Bad Service from Telkom that we have to pay for

Every month i have at least 2 weeks of service interruption from Telkom. the line is dead and the ADSL line is dead and of course no internet. For a business this is unacceptable. You call them to log a fault, they give you a reference number and they dont forget to tell you about the call out charge. My neighbour has internet and telephone line from the same telkom. Her line and internet is working fine.