Reporting cyber crime to standard bank

I spent 20 minutes on the ***** helpline today trying to report a case of a ******** who has a standard bank account whom I later discovered is on many **** data bases with an active website with a standard bank account number on it - ******** people in a very convincing way to buy puppies that they have bred. Using the alias of Mary Kruger of which the account name is registered in. However when we called the number a male with an Nigerian accent answered the phone. At this time it was too late. For a outline of how this **** unfolded let me briefly take you through it. I was helping my grandparents look for a Labrador puppy and found a website with the sale of the puppies at a very good price. After enquiring and investigating we were convinced by the ********** that this was a legitimate way to buy a puppy and we were ******* into depositing R4000 into their standard bank account. Following this I did some research and I found other people had been ****med by the same Mary Kruger with the same cell numbers and the same bank accountant. Why has standard bank not proactively disabled this account. Surely they respond to requests from customers. It doesn’t help if the police don’t even want us to report the case because they do not think it will go anywhere. And standard bank doesn’t answer their helpline. My question to everyone - what roll can a bank play in disabling such a ******** who relies primarily on a bank to legitimize his ****?