Eskom charging me double on my account.

Eskom is double billing me on my account. When I call in I had to hold for 2 hours just for them to drop my call. There is no walk in centre where I can go. This is the worst service ever. I don't think the people in the call centre is capable of doing the work. I tried all the Eskom channels but no joy. The My Eskom app is also a lot of bull**** as you don't get any responses.