UNAUTHORIZED DEBIT BY MFC AND NO COURTESY TO REFUND

I bank with Nedbank and MFC , for the second time wiped my account clean last Thursday with an unauthorized debit on my account. I did not consent to it, wasnt warned about this and no communication was arranged with me to wipe out my account clean. Ive been trying to get through to the relationship bankers abd the care team but i keep being sent from pillar to post. They suggest a Silindile madlala will assist me but that email ad is non existent and the number they telling me to call rings indefinitely with no answer. Almost a week with no groceries and I keep being told my query has been sent to "the relevant dept". No action no calls, no courtesy and abolutely no accountability. The last time Christopher Coetzee arranged for my cash to be refunded as you cant recerse a debit from the bank u banking with but this time absolutely nobody is assisting