Unconsented Money Deduction

I have been with Vodacom for many years, but with recent service I have been so disappointed. I called in to cancel one of my lines in January 2022 in order to reduce costs. They did so, BUT, then the consultant tried upgrading one of my lines not due for an upgrade. In knowing I wanted to reduce costs, she offered me a relief on my current contract with a 75% discount for three months, but then it will extend my contract for three months, which I agreed upon. However, when receiving my statement, I see they have not only added a product to my data contract but also charged me an upgrade fee. Since receiving my statement to the date of deduction, I spoke to 5 different consultants in 3 different departments, the last of which ensured me it will be reversed and corrected before deduction date. Which was NOT the case. Taking money out of ones bank account without consent is *******. Will be cancelling all of my lines in due time and switch over to another service provider. Very unhappy...!!!