Lost case to complain.. lot of wasted promises

Since the 3 October I've been having problems with my Wi-Fi. I log fault reports but nothing then about 2 to 3 week ago my line just went dead. No Wi-Fi anymore. I phone telkom every day and complain all they tell me is the fault say cabling working on it but best the next day they say a technician was to contact you they send messages to them, then next day cabling working on it technician was never in the picture and so it goes on every day for months. No one cares I don't even think they doing anything to help just eye blind. I complained to accounts due they say they credited your account but all they done is guess give me a REF number but I get a accounts still and I gave to pay but no service no nothing sorry lot of promises should say lies.