Download a free Utah Letter of Credit template that can be filled out online and saved as a PDF. Also available for download in Word format.How to use the template: 1. In the sample letter, fill in your personal information. In the opening paragraph, clearly state the purpose of the IOU letter, which is to acknowledge the debt or financial obligation. The Consumer Financial Protection Bureau offers sample letters the debtor can use to dispute a debt. Use our debt validation letter to request the validity of a debt. Download Pdf Select your state below to find a Free Debt Validation Letter. If interest is charged, the rate should be included with a repayment schedule. The parties can settle the case at any time in the process.