Worst baking experience!

I attempted to withdraw money (3000 ZAR) using my FNB Visa card internationally but the transaction was not successful. However, the money was deducted from my account. I sent FNB a slip from the ATM showing that I did not get the money. FNB rep**** to me casually that "they cannot assist with reversal of funds" and no other explanation.

I am a struggling student and I cannot afford to lose 3000, only to be told by an FNB service provider that they cannot help with no further information on how I can be helped.