2 months without wifi, Telkom seems confused about what the hold-up is ...

Running a business from home and having no wifi for two months is crippling. Before thinking about that I'm still being billed, I can't get through to anyone for any help. Every call is refererred to someone else who refers me to someone else. It's finally logged with the service provider (OpenServe) who sends someone out but they leave saying they don't know what the issue is. I follow up and find OpenServe has allocated a new date but forgotten to allocate a technician. They are using my address and contact number from 5 years ago even though I've changed these and double-checked 3 times. It's been a really stressful experience but I can't cancel my Telkom account as I can't ever get hold of anyone, before I even start getting the documentation needed to do so.