Monthly account payments not updated on ITC

In 2014 i had made an arrangement with Nedbank to pay off my credit card quicker and close it off and to my surprise none of my payments since the agreement were being updated on my ITC. They have been debiting R1500 monthly without fail but never bothered to update my credit profile, it now reflects as though I am a non payer. The only update made was to show it's paid. I called nedbank when I noticed sometime in December 2015 that it wasn't updating and I was told they would look into it and still nothing has been done. I am not happy with the way the matter(account payment history) was handled as now it is impacting my financial standing. I am highly disappointed as I valued Nedbank as a business but to receive such incompetence. Highly disappointed