Monthly subscription not cancelled

I have cancelled a sim contract with MTN since October 2024, yet to date the cancellation is not done, the monthly subscription is required of me and even though I keep sending them emails to cancel they still have not done so. This is sitting negatively on my credit report. I canceled my SIM contract with MTN in October 2024, but the cancellation has not been processed yet. I am still being charged the monthly subscription fee, and despite repeatedly emailing them to confirm the cancellation, they have not taken any action. This situation is negatively affecting my credit report.I canceled my SIM contract with MTN in October 2024, but the cancellation has not been processed yet. I am still being charged the monthly subscription fee, and despite repeatedly emailing them to confirm the cancellation, they have not taken any action. This situation is negatively affecting my credit report.I canceled my SIM contract with MTN in October 2024, but the cancellation has not been processed yet. I am still being charged the monthly subscription fee, and despite repeatedly emailing them to confirm the cancellation, they have not taken any action. This situation is negatively affecting my credit report.