Line Rental for no Line ?????

I don't even feel that Telkom deserves that one star . I have requested my Business Landline to be moved in October 2017 after numerous requests and queries as to why my order is cancelled i was told i have an overdue amount that accumulated from line rental needles to say i feel it's ridiculous to pay line rental for a line not received or able to use . After many ups and downs the amount was credited and we started the same procedure now the current line rental accumulated to R3400 which i refuse to pay because after the first time the line was still not moved what is going to be the difference this time? So because i refused to pay line rental for the now almost 4 years i have not had the use of my line i decided to cancel the line to which the same app**** i need to pay the balance due in order for them to be able to cancel , which i still refuse to pay so now i'm being stalked by debt collectors have to email and re-mail and email again all my proof only to be blacklisted. I have spent hours on the phones i even spent hours inside their store but no one is able to assist or even give me a reason . Shame on you Telkom you figure you have the monopoly but that gives you no right to treat your customers the way you do it is after all because of us you are in the position you currently reside in .