Shocking debit orders

Debiting account - Shocking VOX experience once AGAIN!!!! A five-year loyal customer of VOX, I awake this morning (once again) with a notification reading that my account was debited with an additional R2000 (in excess from the agreed upon monthly billing), this after a query handled by >>name redacted by Hello Peter<< a "Supervisor / Manager" on 17 November 2023. Upon requesting a copy of the recording of said conversation on even date, our request has been denied. So here's the question: "Can a service provider simply debit your account with an amount you (as a paying customer who always pays your account on time, without fault) have NOT authorized?" or "Can a service provider still proceed with debiting your account for an item you (as a paying customer who always pays your account on time, without fault) disputed (on 17 November 2023), upon which same >>name redacted<< (who was recorded at the time) responded with ("okay")?" Not to mention how my wife, who lodged the inquiry on even date, was berated by the same individual, spoken to rudely and clearly leaving us with a subsequent R2000 debit which we did not authorize! So today, we have had enough and will take to social media, after providing VOX ample opportunity to rectify their error, ultimately culminating in my bank account being debited with an amount that has not been authorized nor pre-arranged. Should you consider VOX as a service provider, be sure to record your own discussions with them, have sufficient money in your account for debit orders they elect to deduct as they wish and be ready to have your evidence at hand - you will need it! Oh, and this is NOT the first time this has happened - at least they are consistent with their inconsistencies.