No feedback on enquiry about account closed

I was a customer of Telkom 8ta for about 3 years untill last year Oct 2014.I cancelled my internet with them and app**** for a Telkom ADSL landline with Internet.Everything was changed and installed and emails were sent to 8ta to confirm cancellation.Never received any reply and also no monthly invoices.I thought it was sorted out and cancelled.I received a call on the 15th of June 2015 by a company called NuDebt.I was aware I had to make payment on my Telkom account which was in arrears.They gave me a reference number and we arranged I would pay an amount on 18 June 2015.Everything went as discussed and a week later received calls from Telkom saying my account is in arrears.I explained to them I made payment and after numerous calls to figure out the problem NuDebt informed me that this payment was indeed for the 8ta account that was never cancelled on their side.It was strange that almost a year went by to contact me and none of the information was made clear.After more phone calls I was told that I needed to contact Ayanda Dlamini *** and its been 3 weeks no answer on her landline and no response on emails.no one untill now helped me and need to sort it out and refunded.