Unresolved credit dispute

Good day. Please help in resolving my dispute. I disputed my credit report and sent all the required documents. I have not been assisted yet - it's been over the 20 normal working days period. I have been calling and sending emails to no luck. I need my Telkom account to be updated as closed. Telkom has issued me with a paid up letter and I sent it through with the dispute.

My ID number is *** My cell number is *** My email address is ***

Please help.