Telkom always selling incorrect data packages.

On the 25 April 2020 an agent by the name of Zayaan working for Sell direct sold me s fixed line data bundle of R139. I purchased two and on the 25th April 2019 it was activated. In June 2019 I called Sell direct explaining that i was not being debited an amount of R139 as it was always higher than usual, they transferred me to Telkom directly where an agent confirmed that i was on a fixed line and indeed going forward i will be billed R139 x 2 every month. This has never been the case and i never escalated it which i have statements to prove. last month i was billed over R2300 which i contacted Telkom and they mentioned i have never been on a fixed line. I asked them to cancel my contract as this is ridiculous and i knew what i signed myself up for in 2019. Today i received a cancelation amount which i refuse to pay as Telkom owes me money of over R 4 500 for incorrect debit amounts since May 2019. I called Sell direct and they indeed told me once again that I am signed up for R139 fixed line every month and it is capped which means once the data is finished, i cannot use the router. The lady named Jamie confirmed this once again. I need Telkom to not only cancel the amount i owe for cancelling before the 16 month period but also to pay me back the money they been debiting especially the amount of R2300. i need this sorted ASAP. My cancelation request is ***7 and ***8