FNB allowed an EFT transaction from my personal account for a 3rd party to debit , without Consent

To Whom it may concern,

After getting transfared 3 times to find out who debited an Amount of over R7000 from my account and reference FNB CARD with a long reference number that doesn't correspond with the discovery credit card I had 11 years ago. And yes discovery card and FNB are two different entities ,POPI act was not adhered to as my information was shared unconsented. I also demand answers and my money back as i have a family to feed and a house to pay with that money , R7000 is a lot of money to just go off someones account which is over 11 years and insolvant.