Ongoing Contract Cancellation Issue Despite Returning Router

I am extremely frustrated with MTN. I returned their router and requested to cancel my month-to-month contract in September 2024, yet the contract is still not cancelled to date. I have visited both the Ferndale and Northgate stores several times seeking assistance, but they have been unable to finalize the cancellation on their end. They’ve sent multiple follow-ups to head office, but there has been no feedback or resolution.

This ongoing issue is now negatively affecting my credit score, as the account reflects non-payment despite the fact that I no longer use the service and fulfilled all cancellation requirements. I need this matter resolved urgently and my credit record cleared immediately. My reference number is: IRMA: ***