ITC Listing not Clearing account Paid October 2015

My Telkom account was paid in full October last year 2015. It is now January and my ITC is still listed that I have an unpaid account with Telkom:<br> <br> Account Supplier: Telkom<br> <br> Open Date14/07/2008<br> Account TypeService Related without limit<br> Months in Arrears4<br> Cumulative Arrears Amt1,281.00<br> <br> Opening Balance184.00<br> Instalment749.00<br> Current Balance2,029.00<br> <br> This is not acceptable as I paid you in full and expect you to update ITC and inform them. If this is not resolved within the next 24hours, then I will proceed with Legal action against Telkom.