Cancellation of Service

I started phoning on 4 January to cancel my deceased mother's telephone service and held on to the phone for hours on end trying to speak to someone. On 12 February 2015, I left the phone off the hook while going about my days c****s, picking up the receiver every now & then and after about 2 hours, I found someone on the line.<br> <br> After explaining that I needed to cancel this number, I was told to email certain documents to [Email Removed] along with a request to cancel the service along with my contact details. I did this immediately.<br> <br> It is now a month later and I have still not received a reply from Telkom, nor has the service been cancelled as I have just received the account for the line rental for March.<br> <br> Included with the account, is an information page on which is a very short paragraph - Faced with an ethical dilemma - which gives an email address: [Email Removed] I duly forwarded the email of 12 February to this address and it has been returned to me as undeliverable.<br> <br> So now, I've been told that I mustn't phone the cancellation line, I'm getting no response from the first email and the 2nd email doesn't exist.<br> <br> How do I cancel this telephone line?