Santander didn't give a refund after £15,000 fraud

My elderly father was scammed while suffering an epileptic episodeMy elderly father has had £15,000 stolen from his Santander account by fraudsters masquerading as his bank. I don’t believe Santander’s security measures were adequate for an elderly customer who is not particularly technologically competent and who suffers from epilepsy. During the crime, he was in the grasp of an epileptic fit and his consultant neurologist has submitted a report, at the request of Santander, s