Shocking service and no feedback

I have 5 - yes 5 pending complaints with Telkom lodged and have not had one person come back to me regarding my excessive costs from Telkom. The got the installation and connection dates WRONG. The got the connection of my ADSL installation date WRONG. They don't even know when they installed their own line and adsl line but are very quick to bill me and I have had NO feedback from Telkom and they just keep adding to the bill. Time to investigate another supplier. Going to approach NEOTEL now. If the bothered to do follow ups they would see their dates are wrong. I even offered proof that their connection dates are wrong but still NO Credit -NO reversal of the account and NO feedback.