Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format.Who is the party to be notified? 1. Notify Us. Please contact us at (800) 814-3692 and we will assist you in gathering the information needed for setting up a claim. This is to notify the bank that my. (Relationship with deceased). The Safe Deposit Box Petition free DIY Form program is used to ask the Surrogate's Court to see what is in the safe deposit box of a person who died. I need to write to several organisations including banks, insurance and mortgager company to inform them of my partners death. To sum up, I want to inform you that my husband died in a car accident on 28th July 2022. Moreover, he has a savings bank account in your bank.