The death claim letter should be written in the formal letter format. Check the samples provided below for your reference.Sample Letter – Asking for a debt write-off when someone is deceased. This is to notify the bank that my. (Relationship with deceased). Below is a list of forms that you may download for free from our website. You might be able to fill out an affidavit and present that along with your mom's death certificate to the bank. Notify Bank of America. We'll ask you for the deceased customer's full legal name and Social Security number to identify their accounts. The primary mission of Publix Employees Federal Credit Union is delivering the best value for lifelong relationships one member at a time.