TELKOM service cancellation - Impossible even through old web portal. Four months now

I tried on numerous occasions to cancel my ADSL line. I was told to email a request to Telkom ********** to cancel my service. The email won't deliver because the ********** mailbox is full. How pathetic. Telkom the requested that I cansel the service on the old online portal which i did. I did this on the very next day and subsequently every single month after that. I have several confirmation numbers that my line will be cancelled yet i still get monthly invoices for service. I now also get charged for interest.

I want the full details of the legal department of telkom. I am fed up with this.