Here's everything you need to know about not returning security deposits, including a security deposit refund letter template. Reason for refund request.✓ Amount of requested refund. First you write your lawyer a brief letter requesting a refund and an accounting of any services and expenses he believes he deserves to be paid for. Security Deposit Refund Demand Letter. Use this security deposit demand letter to ask your landlord to return your deposit after you move out. A guide on how to ask for a refund and get your money back, including sample request for refund letters. The right to file a request for a refund and to receive the refund. A guide on how to ask for a refund and get your money back, including sample request for refund letters. Of the City of Dallas will rely thereon.