PLEASE UPDATE MY DETAILS ON ITC

In early November I took a kwik advance at Finchoice and because I had just changed the bank they debited the old bank account and because they were no funds it got rejected. On 28 November I spoke to an agent, she gave me all necessary details and refs - I made a cash deposit at the fnb bank for this kwik advance, everything was fine according to my knowledge. Now 2 months later (27 Jan 2016) I find out they listed me on ITC saying I didn't make payment on this loan. I quickly called the call center spoke to SINAZO which she put me through to the Supervisor, he advised they would get to the bottom of this and he will personally get back to, he never did. Called again and I was advised a supervisor Monique will get back she also never did. Please update the ITC as this has taken my score down and affecting my credit life. I have never had a problem with you before and it would be sad if we do now. I am subscribed to ITC so everyday I know whats happening on my profile. This is not right and should be rectified ASAP