Account not updated on ITC

I have contacted the Vodacom Legal department and asked them to send me a letter confirming that my account is paid in full and update on ITC.The letter was received on 11 August 2015 but yesterday 17 September 2015 my name is still not updated on ITC. Please please update as you are creating a very bad name for me and while i have paid my account in full over 5 months ago.