Standard Bank *****

So.. my gets a phone call from Standard Bank to increase her Credit Card limit, which she accepted as the guy had ALL the information the bank should have with the security questions etc..... it was a genuine Standard Bank call as later on the Credit Card was increased. Then two/ three days later she gets a other call from "Standard Bank" congratulating her on the Credit Card Limit increase and says she just has to check what my would like to set her daily limit spending on her card, she KNEW about the increase on the Credit Card as the ONLY person who KNEW about it CAME FROM THE STANDARD BANK COLD CALL..... and besides as the theft via the phone was done a person form the Standard Bank ***** DEVISION phoned my wife to say that an unusual transaction was done on her bank is that correct whereby my wife told him that she thinks she was just ****med and he asked her to hold on and COINFIRMED she was ****med out of R21,000-00 and that he closed all her accounts and APP etc. then while she was on the phone he tracked the money transfer to an account in Capitec Bank, THEY KNEW THAT IT WAS ***** HE CALLED THE CAPITEC ***** DEVISION AND THEY SUPPOSEDLY PUT THAT ACCOUNT ON HOLD WHILE THEY INVESTIGATED.... Now first of ALL WHERE THE HELL DID THE *****STER GET THE INFORMATION FROM??? IF NOT FROM THE STANDARD BANK COLD CALLER??? WHY IS IT THAT STANDARD BANK IS NOT ACCEPTING THAT THERE ARE PROBLEMS IN THEIR SYSTEM?? We are moving our money to another bank and CLOSING our Standard Bank accounts, we are of course going to challenge this but Standard Bank will not get ANOTHER CENT out of us WIN/LOSE this we are done Standard Bank.... if anybody is reading this, do not do ANY telephonic dealings with any financial company again the THEFT is FREAL.....