Telkom ruins our credit record!!!

We cancelled our telephone line last year March due to us moving house. In May we received written confirmation that our account was cancelled, and that we should expect 2 or 3 more invoices until it's "properly cancelled". Whatever that means.

We paid the following 2/3 invoices. Yet we are STILL getting invoices 9+ months later AFTER written confirmation of the cancellation.

Today I discovered that my wifes credit record has been DESTROYED due to Telkom adding an adverse listing 150+ days in arrears.

Now what? We are totally *****ed over because of Telkom's error. It's going to take 2+ years for her record to be cleared. Way to stuff a persons life up Telkom!!!