Bad serivce Standard Bank!

My credit card has expire last year on collecting the new card it was handed to me in a sealed envelope. And so it remain on my desk at home, a few months later I was told I am in the rears with my credit card. On sitting in the bank for over an our I was told someone have used my card and I now paying of on the card on the amount of R11041.00 still up to now no one have contact me after thy have opened a case ongoing for five months