Bad Credit Record because of Telkom

Telkom Customer service, must be the worst customer service in the world. I canceled my Telkom accounts in October 2017, following the proper cancellation procedure. I then got my account debited again in November and December 2017. I then contacted Telkom mulitple times asking them why are they still debiting my account to which Muntu, Julia, Monique, Kelly and two others(Telkom Agents) advised that they are unsure and will investigate and make sure that it is now cancelled. I then found out that a few months later in 2018 that i have been handed over to Nudebt, to whom i then send the proof of cancellation and the Telkom correspondence. Nudebt then confirmed that the account is closed. To my shock in 2019 i was again handed over to a different debt company, which then repeated the same story, founding out that i owe Telkom R0.00c. I also received an email from Telkom, stating that they actually owe me R38.72c. Because of these mistakes that was made by Telkom, i now have a bad credit record and can not even get a cheap cellphone contract. Telkom promised me settlement letters since 2017, but to no avail.

I will email all correspondence as soon as someone replies to this message. I have attached at least 4 reference numbers. I contacted Telkom yesterday and was told that i can not get a reference number for my call....

I need this resolved as soon as possible.