Funds internally taken

I am very furious with Standard bank and how they clearly operate in solidarity. Funds where debited from my account on Friday 31 July without my knowledge. I reported the matter to the Sandrige branch Saturday morning where they found its the banks settlement department that debited my account but without reason attached to the transaction. No further help could be offered to me as it was a Saturday, departments closed and mind you, IT WAS MONTH END!!! I have debit orders! I was patient enough to tell them its okay, I will transfer the very same amount from my credit card to my cheque account so that I don't render a bad name when debit orders bounce. It is now Thursday and after 4 different standard bank personnel escalated the matter,still dont have my money, I don't know why my money was taken and the matter which should have been resolved IS STILL NOT!!!! I AM VERY ****ED ABOUT THIS BECAUSE EVEN MY PATIENCE IS TAKEN FOR GRANTED. What if i had no other plan for funds??? This is ridiculous and I want my money and a very good explanation for all of this!