Security check

I went into Standard Bank Mall of Africa to close my credit card. There is quite a mission to do this but I didn't mind at this stage. Firstly I had to call the call centre from the branch. They gave me a settlement amount and told me to pay it by Friday 16 Feb and come back into the branch to close the credit card. I did this and went back to the branch today 15 Feb to close my credit card. The consultant phoned the call centre once again for me to close the card. The first consultant (Mohammed) did my security clearance then asked me if I have a U Count card. I said yes and he advised I have to first cancel this card before he can close my credit card....a bit frustrating but he said he could put me through to the U Count card centre, they can cancel the card and then I must be transferred back to the credit card division to cancel the credit card. I did this then was transferred back to the credit card centre and dealt with Sarah. I failed the security clearance twice!!!!! Now this is where I lost my temper. Your security clearance asks me questions which is none of Standard Banks business....many of these questions are my personal information and they have nothing to do with Standard Bank....plus this now means your staff can find out a lot about me through these questions which is my private information!! How can you ask me which institutions I have a bond with, which institutions I have credit cards with, which institutions I have accounts with, when did I become a director of a certain company. Really?? And the worst thing is I answered these questions correctly and I failed??? I do not have a bond with SA Home Loans....in fact I don't have a bond. I do not have an account with Identity etc etc etc Is there someone out there who has used my name or id number to open accounts? You have left me feeling very exposed and uncomfortable!! Eventualy after I ranted and raved on the phone they got the consultant in the branch to verify me (as if I'm a ********) so they could close my account. Did I even imagine that it would be this difficult and insulting to close a credit card?