Bad service, no response and slapdash workmanship

I logged a call on behalf of my blind sister that her telephone was not working on 02 January 2016 (Ref: 119CTZ020116). When I followed up on the 5th I was told that the call was routed to a technician and that it would be sorted out within 24 hours. 24 hours had passed and no the service was still disrupted. I called back and was told that it will take up to 14 working days. I explained the situation that my sister was blind and needed this service as this is the only phone she can use and was told again that this is not a business line and will sorted out within 14 days. On Thursday a technician came out and did something and told my sister the phone is fine. The phone literally worked for 1 call and then went dead again. I tried calling Telkom back to advise on this issue but their call centre lines do not get answered even after 45 minutes of holding. Is this the type of service provided and especially when it is made mention that this service is for a disabled person. I can not beleive how pathetic and unsympathetic Telkom staff are to my situation. We depend on this service for my sister to contact us in cases of emergencies and the disprution in service adds a ris