Telkom fails to contact me

I am at my wits end with Telkom.<br> <br> I first tried to close my Telkom Account in March 2015. The account was closed in July. I paid the final amount and closed the account. Telkom personnel confirmed that the account was closed and I got a cancellation code and everything. Ever since then they have been pestering me with additional amounts. They have blacklisted without satisfactorily reviewing my dispute.<br> <br> It is so difficult to get in touch with anybody from Telkom who will listen to you and care about your problem. I feel bul**** into a corner. I am begging Telkom to please contact me. All I want is an explanation and now I can't apply for credit because Telkom doesn't care to listen. This is really messing with my life.<br> <br> How do I put an end to this nightmare?<br>