Telkom does not respond to complaints

The line at our office has been out of order for longer than 3 weeks now. We reported it on 18 March 2016. We are a medical facility (Lancet Lab) that does medical tests and depend on our phone line to communicate with our doctors (clients) and our patients on a daily basis. Despite our numerous calls (daily calls for the past week), no response was given to our complaint. The operator had twice told us that \the problem had been solved\", while it has not!! We already have 3 different reference numbers - every time a new complaint is logged. This situation has become unbearable and our business is seriously being affected by this. PLEASE COULD SOMEONE FIX OUR LINE!!!!"