I paid for what you gave me, why is my name on ITC

Nadiemah knows we had an agreement that I will not pay Intec college anymore money. I paid for the study material they sent me but I did not study with them and I cancelled my course as I am registered with UNISA. I actually paid more than what the study material costs. They keep calling me and sending me emails and sms's. Now they have put my name on ITC for what????. I will not be paying Intec any money, I do not owe them nothing, I didn't study with them so why must I pay? They need to stick to the agreement that I had with Nadiemah and REMOVE MY NAME ON ITC. This is the worst service I have ever received in my whole life. They need to sort this out NOW