Utterly disgusting service from Vodacom!!!!

The service we are receiving from vodacom is absolutely atrocious, my mother's fibre connection has been offline for 4 weeks running, we have been pushed from post to pillar and to another usekesd pillar for the last 4 weeks and to date every ticket we have logged had been closed without the fibre being fixed. Not even the help centre could assist tonight, Jacob in the call centre would not even provide assistance and would not even provide me his manages name, would not even reopen the ticket even though the main account holder was on the phone ready to verify her details. This level of service is absolutely disgusting. My mother had just gotten out of hospital and is nearly 80 years old and we rely on her fibre connection to be able to stay in contact with her and vodacom just don't seem to care. They were supposed to dispatch a technician already 4 weeks ago, and we are still waiting, I even contacted the regional manager who tried to assist and even his ticket he kindly opened for us was closed by the call centre again tonight at 9.54pm. Vodacom is spar to be the best service provider in SA, this is the second time the same problem had occurred and Vodacom just don't seen to care at all. Very very poor service. Any suggestions on how we go about getting this problem solved - now stressing the Execs at Vodacom to see if they can assist.