Unauthorized Transactions on my card

On the 8th of October i had numerous transactions taken of my debit card, Total value R10,358.71. I called the customer care and they advised that they had a malfunction in the system and they are in the process of reversing all these transactions and an agent will call me in an hour , 4 hours later i called them and was advised that the malfunction was on the 4th October and all reversals were done, I should contact my bank. I contacted my bank and they advised that nothing was done. I call hertz again , was on the phone with the agent for over 58 min , Manager Michelle says she is not allowed to talk to customers all she advised the agent to inform me that there is nothing they can do , we should call the bank or wait a few days for it to reflect when i advised why can they not call the bank and check whats going on, maybe their system malfunctioned again and reversals were not done, i was told they do not do that.Called again today and guess what its a different story all together. HERTZ DO YOU KNOW WHAT YOU ARE DOING???????, your take money without informing , its called *****ing and committing ***** on the account . You do not have the courtesy to apologize for your BIG mistake , no notification when you realized that an error was done on you end to the customer so we do not panic. Till today there is no communication from you.