FNB gives 3rd PArty Clients Information, without Consent

What the hell is this !!! Who gives you mandate to debit my FNB account !! i had this card last year and i was told i can credit amounts to it and still use it. Furthermore i provided my Nedbank account details. Which you have been going through to debit! now the debit order went off my FNB account! your association with FNB gives you mandate to debit my account unauthorized? my rights have been violated! Who have you the permission to debit my FNb account! Where did i agree to give uou such! fnb and discovery card are two different entities! it means FNB provided you my details without my consent! YOu discovery card acqired my details Without my consent too!! I want my money. And Some answers! POPI act was not adhered to as my information was shared unconsented! I demand answers!!