Blocked account without explanation

I went to sportcene east rand mall on the 6th of May to purchase a pair of puma shoes. R1499. At the till i was told that my card is not working and need to go to Totalsport to do a card replacement. I made them call the manager to assist me with the purchase as the stores are very busy and causing an embarressment. The system then showed that i have no credit available. I was then told to go to Totalsport and not offered any assistance from the cashier. It was embarrassing. Manager name at the store is Chantelle. <br> <br> I went to Totalsports immediatly to do a card swop and to understand why i dont have credit available. The consultant phoned customer services. The card swop went through successfully. The customer service agent (Debra) then told me i have a ***** alert. I was not explained why though. <br> <br> I was then told that i have to anwser a set of security questions which i had wrong twice and that my card is now blocked. I destroyed the old card a new card infront of the store consultant and made clear that i will close this account. <br> The security questions which i was asked was my life 4 years ago. I moved houses, i got married, i changed bank accounts in the meanwhile. <br> <br>