STANDARD BANK DE*****ING THE DECEASED!!!

Can someone at standard bank tell my family why they won’t close our deceased mother’s accounts when we have notified AND submitted all eveidence that she has passed. It has been 7months already and moneys for debit orders are still savagely being taken out of her account. Her negative balance is doubling with each passing month. Is this how they enrich themselves? With deceased people monies? What a shame. We don’t even get any feedback on why her account is still active. What could possibly take so long to just freeze and close the account because the owner is no more? Is this even legal? Please close the account and stop de*****ing people!!!!