After more than 2 weeks - no resolve on overcharge

After my previous complaint about Telkom, I have had no resolution to the overcharge of nearly 100% my normal monthly account fee.<br> <br> I have however, received an invoice stating the amount deducted on my account (received on 4 April).<br> <br> I cannot grasp how such a large organisation can continue to function when basic things like monthly billing are such a challenge.<br> <br> Handling client accounts is also something the staff available on the customer care line cannot do as they cannot even pull up an account and accurately answer client queries that way.<br> <br> I would appreciate email correspondence in the handling of this (second) complaint about the same issue as I wish to have a physical record of Telkom's actions to rectify their fault.