Bad service

I've never had a problem with Telkom, but when we moved to another town I asked them to move my line. No one rep**** nor did they answer the phone. Had to wait for about 20 minutes.

That didn't work so I decided to cancel my Telkom line end of July. I spoke to one of their service agents via internet live chat. They told me I had to give 30 days notice and sent me a link and form to complete and to forward to an email address. I did this and waited the 30 days. Then I received another statement which was for the last 30 days of service. I accepted this.

Today, 3 months after my ending of service I received another statement saying I have to pay. This after I haven't used my Telkom line in a couple of months, seeing that its situated in another town and they didn't move it.

If I don't pay I get a bad credit report! What to do?