Give me back my money

I recently opened an account at FNB. Like any other bank I was asked the use of the account and told the consultant I'll be using it for SRD19. She opened a premium account without my knowledge and gave me a connect simcard under the impression that it is given to all knew customers, little did I know that I'll be charged and the premium account has higher monthly charging fees. I then went back to the branch to get this fixed immediately after receiving the SMS stating that my overdraft is on R370 I had the shock of my life. I was told it is downgraded, now the issue is that I got debited for something that I didn't not sign up for this is literally *****. I called from the app and the assistant went mute me assuming she did call avoidence. Me trying to call back again it keeps saying I'm on another call 3hrs later. I want my funds that were debited for an account I did not sign up for.