Bad service and pathetic turn around time

I sold my car in 2021 September and canceled my tracker contract. The consultant told me that month end would be the last debit order. This was a lie as the next month was debited but because there were no funds in my account, the account was in areas. I refused to pay the amount becausd the consultant I had spoken to said that September would be the last month and I requested the call recording. I was told a team leader would handlebmy querry but no one did. Fast forward to 2023 I see the account appears on credit report as a n account that is in areas. In April I decide that my credit score is more import and I pay off the account. I then get in contact with Telematics so that they can remove the account. I speak to a very rude Nonhlanhla Khumalo who request that I send her documents. I do this by the end of April and she explains that it will take a month before the account is removed from my credit report. I wait for a month and the account is still not removed. I send Nonhlanhla an email and she doesn't respond. I send he another email in August (after 3 months) and still no response. its now September and the account still has not been removed from my credit report. l have again sent an email and no response.