UNAUTHORIZED TRANSACTION AGAIN...... AGENT NOT HELPING

I once again noticed an amount taken from my bank account on 30/11/2021 for R301.00. This shows FNB card, however I know it is Kulula. I battled since 2/12/2021 online chats and calls to reverse this item and called today and was transferred from pillar to post ending with Micheal by Debit Order that didnt sounded very helpful. Aparently this was a transaction and no a D/O. This D/O is not for me but the late Mrs HI M Merrick, ID ***0785, who passed away on 12/06/2021. All documentation was sent to Kulula and FNB card divisions who chose to ignore this as we keep on getting calls and lawyers notices. Now please, can someone, reverse transaction from my account and sort this late estate issue as it is ******** to debit my account as the card in question is not mine.