DISAPPEARED FUNDS FROM THE ACCOUNT

I had made bets to sporting bet from my account in the month of March and April. And all those transactions required me to approve them on their app. In May when i was not placing any bets i had deductions coming out of my account that didn't even require any authorization from me on the app. I had called them and got transferred 3 timed to the card dispute department which said i must contact sporting. Sporting bet provided me with a transaction detail of what i deposited to them and the funds in question are not reflecting there. I have even gone to the branch and received no help instead for a call to be logged again with card dispute. I need an explanation as to why money can go off an account and not require authorization from me also what happend to the money. Capitec bank please assign someone who will be able to help me because I'm tired of calling and going to you branch only to not receive any assistance.