Update Our Credit Status When We Pay You Telkom

I am quite concerned with how we are pestered to join cellphone contracts but can't make arrangements and we are listed as people in arrears when we want to make arrangements. My contract was in arrears in August I paid Telkom more money end of October however they have not updated my credit status and this is the second month I keep on calling the four major bureaus and I still particularly appear in Arrears on Transunion. What must I do to get my status updated. I have called Telkom 3 times regarding this matter to no avail. It seems easy to list your loyal customers but hard to update their credit status. I have even contacted the credit ombuds regarding this matter