Stuff the lights, Eskom needs to sharpen up their customer service

More than a year ago, I sold and moved off a smallholding. I was and Eskom direct customer. In the 15 months since moving, Eskom has not managed to either close the account or to issue me with a refund for the credit balance on my account. I am aware that Eskom is not very good at keeping the lights on. I was not aware that all their customer help offerings do is issue reference numbers. I have plenty of reference numbers and more undertakings that the issue will be resolved, but all the promises so far have been empty. Looking for one competent person at Eskom to help me here -- closing an account should be simple. Isn't that what loads of your customers have been doing since discovering that they can produce their own power more cheaply and reliably than you do?