Telkom - "T" is for Terrible -

I am a telkom customer, and have been for the past almost 5 years. In about August last year I put in a request to cancel my landline as I was going to be upgrading to fiber. I completed the forms and sent them to the email address as listed by Telkom. I followed this up with phone calls, preceding and after the request, to no avail. I still have my telkom account, but because my monthly bill is so low I sometimes pay the account within 60-90 days. Nobody has ever highlighted this as an issue to me, nor has anyone ever got back to me relating to my CANCELLATION request. I am also an FNB Customer and I recently app**** for a bank overdraft and my application was rejected due to notes that telkom have put on my credit profile. It is simply unacceptable that Telkom deems it appropriate to IGNORE my request and continue to accept money from me, albeit not within 30 days, never highlight the issue, receive the interest, and then negatively affect my credit record. I have paid up your account in full, all R467 of it, and I request that you immediately withdraw your negative remarks against my profile, send me proof and notify FNB thereof. Your urgent response to avoid further action is appreciated.