Why you received this notice. You have a past due California income tax debt.A verification letter confirms that a person with a disability has a disabilityrelated need for the change they are requesting to their housing policies. To get proof of employment, you may need to request a verification of employment letter from your current or previous employer. A confirmation letter is written to make sure that certain information, event, appointment, or spoken agreement is correct. You can include a reason why you're requesting a verification letter, but you don't have to. In fact, you don't even need a reason to request it at all. 1. In the sample letter, fill in your personal information. As an employer, you or your authorized representative must complete and sign Section 2 of Form I9, Employment Eligibility Verification, within 3 business days. Academic Confirmation Letter.