You'd think it's that easy. Some places literally are unable to do anything unless you're some sort of "signatory" or the actual account holder. No amount of if, buts, maybes, and certified/stamped copies of death certificates will convince them.

I couldn't even cancel the health insurance company's recurring payments after a death. And they had the audacity to send a "how was your hospital stay" questionnaire to the account holder's email after they were "discharged" by the hospital.