A Bank Confirmation Letter gives an Executor the ability to locate assets which the Executor did not have prior knowledge. We have credited your account at.Verify account and balance information easily and securely. Select the type of Confirmation request you require and submit your request as instructed. In this article, we discuss how to write a conformational letter, look at sample templates for formal and informal confirmation letters and share some tips. With your days so busy and life so full, you need a bank that can keep up with the lightning pace of change. Background: High response rates are needed in populationbased studies, as nonresponse reduces effective sample size and.