I need to write to several organisations including banks, insurance and mortgager company to inform them of my partners death. Informal probate is the process for asking the court to appoint a personal representative for a decedent's estate without a hearing.Sample Letter to Bank Informing the Death of the Account Holder. The death claim letter should be written in the formal letter format. 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. List A. • Valid Passport. This is to notify the bank that my. (Relationship with deceased). Dealing with a person's financial affairs after their death can be difficult, so we've compiled a helpful guide on what you should do during this situation. This form must be recorded before your death or it will not be effective.