Continous problem with line

Im absolutely disgused with the service I receive from telkom every week for the passed 4 weeks there is a problem in the hillcrest area and my phone is dead, no internet or Adsl line as well and this always happens on long weekends so I can't do any work from home unless I purchase a bundle to use other services. I hav an unkept line but have to use other services. The line works for 1 or 2 days and goes off and call centre calls when no one is available or at home. This is business lost for me and I'm paying for additional service to get work done. I don't believe that their services will change unless something is done. Worst service provider I hav delt with