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. Basic confirmation letters written to confirm the details of a meeting, event, or other arrangements are typically brief and to the point.We currently require a verified customer signature prior to completing a change of address, either in person or received in the mail. I write to confirm the receipt of your recent payment. I am writing to confirm the details of our purchase agreement. CC: Financial Department. 3. Specify the Information Needed: Clearly communicate the specific information you require in the bank confirmation letter. We hope this letter finds you well. About your account, we would like to confirm the accuracy of the outstanding balances as per our records. The BCL should specify the name and address of the person or entity that requested the confirmation or that is involved in the transaction.