Old mutual - nobody reachable

Have you ever tried to get to a human in this company. Not an APP or WHATSUP, but a living human being. I tried email twice and tried to phone them twice. Email do not work because you must phone. So, I phoned. You came to an answering machine that gives you a thousand options to pick from and when you pick one, it gives you another 500 to choose. How absolutely infuriating. Then I just picked any number and finally I get to a person, who transferred me to another. Security questions, I get that, but how would I know on top of my head, the credit limit of my clothes account. And how do Old Mutual get that information. It is private and has nothing to do with them. How will the poor person who have to manage my estate after I died get hold of anybody at this Top Secret Company where nobody gets in and nothing gets out?