Collections taking an additional R2104 from my account

Word of advice: DO NOT BANK WITH THESE IDIOTS. 1. Fnb double debitted me - NO ONE IS ABLE TO REFUND OR REVERSE AS ADMIN IS NOT AVAILABLE. if you have the ability to take money that doesn't belong to you, you should have the ability to refund that money immediately. I have other commitments which I'm unable to honour. I will be reporting this to the banking ombudsman. What's worse is that I've used in excess of R300 airtime because you are bounced from pillar to post at the call center with one idiot woman screaming over my words "HAVE PATIENCE PLEASE THERES NOTHING I CAN DO". I have been on the line since yesterday 17:30 for 3hours only to be told, no one can assist. I DON'T HAVE MONEY thanks to these losers I'm unable to fulfill my commitments because FNB is greedy and chaotic. Who authorized the batch run that allowed hundreds of clients like me to be out of pocket. Who allowed this to happen?? And who the hell can fix it because I'm not waiting for money to feed my family??