Credit Bureau negative listing

I had a contract and I fully paid it and I received a paid up letter confirming the settlement. I then requested them to clear my name from credit bureau as they communicated they will do. It’s been many months waiting for them to clear my name. I have emailed and called them numerous times but no help. I sent an email to delisting department and *** and them too never came back to me nor assist.

This is an inconvenience. I’m affected negatively on my credit report. I’m stuck, it looks like I’m paying Telkom R6000 monthly.