Vodacom ruined my life

Settled my account with you Dec 2022 and received a settlement letter. But have been debited for the last 12 months and the amounts vary. between two hundred and something to almost a thousand rand. Which I had to ask my banker to confirm because requesting statements past 6 months would also cost me money. When I spoke to a lady at Voda, she said I had to pay six hundred odd rand which they charged, but she would dispute it and asked I pay the admin fee of two hundred odd rand. I refuse to pay either as none of this was ever communicated to me in the last 12 months. No call, email, text etc and I still use the same number. This has affected my finances as well as my credit record. Nevermind the fact that if my account has no funds, my account goes into arrears. When I dispute the debit order, my bank charges me and I am charged an overdraft fee because my overdraft goes into arrears. I need compensation because an apology alone is not enough. I am a new single mother of 6 month old twin girls, trying to survive and this big corporate thinks its ok to just ruin peoples lives like? I was given a reference number by their legal team and still have a reference number from my initial complaint last year when after settling the account and was told my number was deleted. Which of course they assured me wouldn't happen when I spoke to their legal team. It's a never ending struggle.