Sold a line already belonging to someone else, refused to cancel it, continued billing

I've had non-stop issues with Telkom since December 2017. After moving house in November 2017, we realised there was no ADSL in the new area and cancelled the line on 31 December and AGAIN on 4 January 2018. Telkom refused to cancel the line and continued to bill me.

After 7 visits to your store and no less than 8 calls later with your 'help' centre, it came out that the line already belonged to another individual who hosted her line with Afrihost. For this reason, Telkom refused to cancel my line and continued charging me.

It is PREPOSTEROUS that Telkom rents out the same line to two people and expects to make a quick buck off it. In addition to this, Telkom expects me to pay R1098 for a line that was never mine!

Absolutely disgusted with the disorganisation of administration, lack of follow up and quite frankly, ********* business practices of this state-owned entity.