Unable to cancel ADSL or get feedback regarding it

Since 19 January I have sent numerous emails to cancel my landline and ADSL service. I have completed the form and sent it to the "servcancellation" email as instructed to. I only receive an automated response. I have not had any official feedback on my request. I have resent the mail numerous times with no result. I have tried the chat facility on the website and the operators on there tell me they can't assist me, only somebody from the cancellations department can, but there is no way for me to contact anybody in this department. Numerous phone calls have also been placed and the operator on the phone is also unable to assist. I have even been to a store where I was told that they can't help me there either.

It is absolutely ridiculous! Nobody in the company is able to assist!

I refuse to pay any further bills I receive as I have done my part, but Telkom has however not!