Nedbank not safe and willing to protect your money, not even elderly and fragile customers.

My 81-year-old mother lost R700,000 after a SIM-swap ***** on her Nedbank Fixed Investment. Nedbank didn't pick up any red flags and waited 8 days before action. The bank recovered R65,000 but will only pay it if she signs a full and final settlement. She lives from the interest on her investments. How is our money save at Nedbank? Especially fragile and elderly customers.