I called the number on both documents, . And found out that due to COVID the phone lines are closed until further notice.Whether the overpayment notification letter to the customer is a system generated letter (Notice 18) or a manual letter it must state the following information: The salary overpayment resulted because . To determine the overpayment amount take the "Amount Recvd" and subtract the "Right Amt". This amount will appear in the "Current Overpaid" column. There has been an error in your favor! When claims are adjusted due to an overpayment, a Solicited Demand letter will be issued to you. To file or pay your taxes, visit the Maryland Tax Connect portal, use an independent software provider, or a professional tax preparer. B. If you are filling out the waiver request for the overpaid person, provide your name and relationship to the person.