Credit Card linked to another persons account

I received a call a month ago which said that a new card was being delivered to my offices because my old one was expiring. I signed for this new credit card and took it into the branch at Norwood in Johannesburg to set the PIN. The assistant at the branch cut up my old credit card and handed me the new one. I then proceeded to use the card believing it to be my replacement card. No transactions appeared on my internet banking and my account number had not been updated. I contacted the bank to enquire and found out that I was not the primary account holder of the card but my father was. My father did not authorise this. Netbank did not inform me of this when I was given the card and destroyed the card which was in my name without advising that it was still active.