Damaging one's credit profile with failure to close accounts, *********** consultants

I have had this issue with Telkom since 2023. I ended all contracts with Telkom in October 2023 Yet I still have an account showing as current and active in my credit profile on Experian. Now this is really affecting my credit profile. I have made numerous phone calls to Telkom requesting them to please remove my name from creditors and they are not doing that for 7 months today. They keep sending me letters saying they've removed my name but the account forever remains in my profile. I don't know how to deal with this anymore as I've sent countless emails and made countless calls since last year November. This business is very bad and will make sure it ruins your name with credit bureaus without caring how damaging that is when you have to do other things. Telkom I need you to sort this out as of yesterday. You consultants are unhelpful.