72 hrs turn around time promised- No show

I am a loyal and hardworking citizen of South Africa. If I provide a service to customers I would be expected to give my best. But that not the case with Telkom SA why cause they promise to have technical issues sorted within 72 hours of logging a call yet no one to date has even called to confirm the call was appointed to a technician. I have currently over 4 lines in my family and business that run with Telkom and when I queried to cancel the lines for their bad service I get told sorry we can't do that over the phone you must drive in to store and cancel there. WHY when they so willing let me sign up on the phone can they not let me cancel on the phone. they tell me to download a cancellation form. How am a supposed to do that when my line isn't working. Disgusting attitude and work ethics from Telkom. Rather move to another service provider. use my money worth it cause even with issue with Telkom they don't ever give my money back for the weeks of no service I have. Disgusting