**** of a service, very bad customer service

I would like to log a complaint. Vodacom has been nothing but a pain in my head. I have been a vodacom customer for years but now when i want to cancel my order it has become a big problem, i logged a cancelation with vodacom last year November, but to my surprise my account is still active and they are deducting money from my account every month, i have been calling this year 2020 from March until today for my number to be canceled on contract and be on prepaid but nothing is happening, i have to call every day and being told it has been canceled i should wait for confirmation sms, Kimberly is the 1st person i spoke to regarding my cancelation and she said she has logged it and it will be canceled, she never bothered to come back to me, i have spoken to Zihad who just hang a phone on me, spoken to Thandeka and Mbali these 2 has been helpful, i called today spoke to Nhlanhla and the line dropped he didn't bother coming back to me, spoken to Zanele who promised an immediate cancelation but it was not done, i have spoken to Phumzile as i await her call woth feedback. I am sick and tired of Vodacom and their bad service and can you please stop deducting my money on my account and cancel my contract, why are you forcing me to continue with your contract when i no longer want, what a **** of a service i am getting from you guys, this is unprofessional, do something before i involve my lawyer