Harassment and poor service!

I have changed my bank account details. I advised Telkom thereof. Due to the ineffectiveness of Telkom's billing department, I had to make two manual payments via EFT. The payments were done timeously and proof of payment were sent to them. They keep on harassing me, sending me messages that they are going to suspend my line. Whenever I speak to Telkom about it they say my account is up to date and has not been handed over, but they keep on sending me threatening messages. One of Telkom's very kind and willing to help employees has gone out of his way to help me with this, but the threats just keep on coming. This morning they sent me a final notice of cut off. When I forwarded the message to Telkom. they told me to ignore the message as all the relevant role players are aware of my situation. Bottom line: Telkom's admin and billing departments are useless. Telkom harasses their clients and are not effective to resolve their own issues. I will never sign up for any Telkom service again and will cancel all my accounts when they come to an end.