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. We'll need a photocopy of the death certificate to verify the identity and legal residence of your loved one as well as confirm date of death. This is to notify the bank that my. (Relationship with deceased). After a relative dies, the last thing a grieving family member wants is a call from a debt collector asking them to pay a loved one's debt. This letter is from an executor notifying a bank about an account holder's death. This is to notify the bank that my. (Relationship with deceased).