Telkom billing

Terrible experience!!! Unauthorized debit orders (which can be reversed, but it's a cost to me in terms of bank charges) and when I make a request for a call back, they generally call back in less than 5minutes, BUT, it takes me straight to the automated voicemail, always saying it's Full. Therefore the call request is Useless! I went to one of the branches in Cresta mall, the supervisor there was also of no help. We ended up calling the billing department and whoever was on the other end cut the call!!!