unhappy 8yrs loyal customer turned into a ********

I went to to Foschini at Protea glen mall to make a card replacement and to buy some cosmetics. I was assisted by a helpful sales lady by the name of Petronela. She then called the call Centre so that they can activate a new card for me. The phone was answered by Thando who requested to speak to the account holder which is me, Petronela then gave me a phone to speak to Thando for details verififcation but he was just asking me irrellevent questions and they had nothing to do with my account. I then asked him why is he asking me irrelevent questions because he was asking questions that were not even related to the details that I provided when I opened my account. He even failled to tell me why he is asking me those stupid question. This guy was asking me about cell phones numbers and companies I don't even know. I was so suprised as it wasn't the first time having a card replacement and I was never asked those kind of questions. He then requested to speak to Petronela and he advised her that she must not give me a new card as I have failed security question and he is blocking my account and he is taking it for forensic investigation. I was humiliated and treated like a ********.