Telkom mobile pathetic customer care service

I cancelled my Telkom mobile data contract May 2020 after paying them each month via debit order and was never able to use the data due poor or no coverage where I stay. In the two years I never received any invoice stating my monthly bill and or data usage. Two months after the 30 day notice another R195 was taken from my account via debit order which I reversed. In September 2020 my wife started receiving sms messages from a company Nudebt demanding we must pay immediately R200 which is in arrear. Up until then still no documentation was received from Telkom stating anything about money I own them or about my contract status. After phoning Nudebt and was informed that I was handed over to then to collect money from me which I own Telkom, I phoned Telkom billing department to find out what it was about. I was informed that I still own them R200 and excepted to pay it after their explanation. Again R200 debit order was processed against my account which I reversed. Nudebt again sent me messages that I must pay this money immediately. I phoned Telkom billing again to find out what was going on, after which they acknowledge that my contract was cancelled and that I own them nothing. I requested Telkom again to sent me copies of my invoices and confirmation that my contract was indeed cancelled. Still I did not received any documentation from them until today. Then again another debit order for R410 was loaded against my account in January 2021, but reversed. I even received a sms message from them thanking me for the payment. I phoned Nudebt again to find out what is going and told Nubedt that that they do not have any authorization to process any debit orders against my bank account. They responded by telling me they did not do it, but Telkom. After phoning Telkom, they informed me that they had nothing to do with it. I do not own any money and that my account is closed. I asked Telkom again for documents to state that my account is closed and payed up. The lady at billing department also told me to sent a mail using the address on the Telkom website. After informing her it does not work, she offered that I sent the mail to her personally and that she would forward it to her team leader to assist me. Until today I have not received any response on my mail. Last Friday I received again a message from Nubedt that I must make an immediate payment of R810. Again I phoned Telkom today and was told the same old story. My account is closed and I am fully paid up. Again I requested paper work to proof it.. It is clear to me never do business with Telkom, they have no customer care service. Never provide your them with your banking details, they will keep on collecting money from you. They are quick to hand you over to collecting firms without consulting with you the customer before hand and after wards their communications with their collecting companies totally collapse to extent of none. Processing debit orders without authorization boils down to theft and *****. Telkom keep on sending me sms messages can also end in harassment charges. If anyone talk to Telkom or their appointed companies, make use of the tape a call function on you mobile phone since Telkom cannot afford to sent e-mails to confirm your contract status or maybe does not know how to do it. Telkom this experienced also made me decided to cancel all remaining business with you when your contract period runs out.