Telkom Worse Service Ever, Ever, Ever

I have been battling with Telkom for how long to cancel this line, I have been paying even after asking for cancellation and sending in the form, it is now July I am still paying and now there is more charges and you cant tell me for what because your system is offline this is totally unacceptable. Will I even be refunded for all this months paid and no service used. This is the worse service I have ever received in my life, below is just an example of what i usually get when confronting there agents, none of them will provide me with a managers email or higher rank to escalate this issue

Thank you for chatting to us on 13 July 2018. Your conversation with the agent is available below:

Please hold for the next available Agent.

11:21:26 AM) (u'Leo khan',)> Hi I just received my bill for end of month and got this on it for the first time. You are currently being assisted by Nozipho Nzimande

11:26:09 AM You: : You remain responsible for the total amount due. Your debit order is insufficient and the shortfall ( R 153.89 ) needs to be paid by 01 Aug 18. Hi I just received a bill for Aug and got this for the first time, first of all this account had to be cancelled in January and yet it has not been done nobody is using the line as everything has been unplugged on the 24th of January 2018 when i moved i am still paying for this which is so unfair because telkom can not move me over to a package in this amount and because there is no lines where i stay this is poor service for a client to be paying and can not make use of the services being paid

11:26:09 AMNozipho: Thank you for contacting Telkom Residential FixedLine Billing Chat , you are chatting to Nozipho,how may I assist you?

11:27:12 AM You: What is this R153.89

11:28:24 AMNozipho: Good day Leo. Please provide the landline number?

11:29:04 AM You: ********** 170

11:31:16 AMNozipho: Thank you Leo.Our system currently are offline. Kindly contact us at a later stage , apologies for the inconvinience caused

11:31:25 AM You: I have sent through a cancellation request on the 23rd and another one on the 25th of June 2018 with Tennelle

11:31:45 AM You: this service just went from bad to worse