Telkom replies on Hello Peter and they still do Nothing

So I have said before that I have been trying to cancel my Telkom land line since the 10th of April 2018. I got and automated response on the 11 April 2018, saying that it will happen with in 21 working days. Since then there has been no response and no assistance. I am still receiving bills and bills and not response to cancel the line!!! this is a reply I received on Hellopeter after I posted here.

"Hi We are sorry to hear this. Thank you for contacting us and bringing this to our attention. This response serves as confirmation that your query has been received. Please be assured that we will task our team to investigate and advise as soon as possible. We do apologize for the inconvenience caused. Interaction REF: AI ********** Regards Hazel Telkom Social Media Team"

And can you guess since then no response and no assistance. what can I do to resolve this God afoul situation I am tied to a company that doesn't care about its patrons.