Notice of payment Telkom 8ta mobile

I have received numerous emails and sms messages from Nudebt Management to make payment to Telkom 8ta Mobile. I cancelled this contract with Telkom on the 29th April 2015 at Springs Telkom branch. Yet after this my account was still debited, I reversed the debit orders several times. I went to Lakeside Mall Telkom 8ta shop in July 2015 to AGAIN cancel the contract. Irritating to say my account was still debited, went to my bank again several times to reverse the debit orders.<br> I did receive a mail from Nudebt on 27 August 2015 to inform me that the account was sorted and that I owe Telkom mobile zero rand.<br> Now, due to the incompetence of Telkom I sit with a blacklisted name on ITC. I want to know how my name will be cleared and by when? I did the right thing to fill in all the paper work at a Telkom branch to cancel my contract but clearly this is not enough.<br>