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). Start the letter with your introduction and the reason for writing the letter. You can use this letter template to write to the bank to request the closure of a direct payments account following the death of the account holder. You can use this letter template to write to the bank to request the closure of a direct payments account following the death of the account holder. Executor or administrator? Do I need a solicitor? Find out how to order a copy of a birth or death certificate.