Worse experience ever with Standard Bank

On Thursday the 28th of May 2015, R4000 was withdrawn from my standard bank account while I was at the office with both my standard bank cards. I called the bank immediately and reported the even and they opened a ***** case, the findings has come back twice saying that there was no series of cloning on my card and hence the claim has been declined. I am really frustrated and mad as hell! No one can explain to me how is it possible for someone to withdraw money from my account when my cards are with me and when I haven't even gone near an ATM or even used that card in a few days. How can I be sitting at home or at work with such insecurity that the bank can't even explain to me. Why is Standard Bank treating me this way?????<br> <br>