Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format.This is to notify the bank that my. (Relationship with deceased). The DHS Acronyms, Abbreviations, and Terms (DAAT) list contains homeland security related acronyms, abbreviations, and terms that can be found in DHS documents. Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. Find out what our customer have to say about using our banking service. If you had a great experience, you can write to us too.