Telkom's bad service in cancelling a line

I called the 10210 call centre & held on for over 1 hour before being able to speak to a call centre agent, I was cancelling my mother's land line as she had a major medical emergency & was no longer living at that address. The line was confirmed cancelled & when asking for a settlement figure, I was told to speak to accounts, that took another 45 minutes to get the right person, finally I was given an amount which I went & paid. A new statement has now been issued with another months charges (no calls) even though the line no longer exists. I called 10210 again, cannot get through as the number related to my call does not exist!!! So what does a person do, they advise using [Email Removed] but no one responds. Today I call again & select \new customer' which gives me access to someone to speak to. THE PROBLEM IS THIS ..... AS MY MOTHER DID NOT GIVE TELKOM MY ID NUMBER TO ACT ON HER BEHALF