No ADSL - going on 2 months

My phone and ADSL line has been down for close to 2 months now. I have been trying to find answer relating to what is wrong and what my expectations should be to no avail. The callcentre has apparently escalated, sent emails to the technical manager, more escalations and all to no avail. All the emails and escalations simply get ignored. In the meantime I have to pay R700 per month and they can only refund me once the line is fixed. Which I dont have a clue when this will be. Telkom has to understand that I need to be in a position to make choices here. Is this going to take another 2 months to fix, in which case I cancel the line. Or do I wait, but for how long. This is severely impacting on my business which I conduct from home and without internet it is virtually impossible. So now I am paying double for 3G data as well. Ref nr: 383CTK070717