FNB/EBUCKS error and reversal

Good day<br> <br> I phone FNB lifestyle which happens to be Lerato NdeNgane. She assisted me in a kind way.<br> She found my transaction, spotted the error.<br> <br> Thereafter she asked me for my credit card number and my CVV<br> <br> How can this service ask for a CVV. That goes against all security certifications that i know off (PCI)<br> <br> The storing of unencrypted CVV, be it on phone records or on paper should not be allowed<br> <br> I require ebucks as a service offered by FNB to reverse my transaction and give me my money back without storing sensitive information such as my CVV<br>