If you lose your closed loop gift card, it is important to contact the issuing company as soon as possible. Most companies have a process for replacing lost or stolen gift cards, but the specific policies and procedures may vary. You will likely need to provide the company with the original purchase receipt or other proof of purchase, along with any identifying information associated with the lost card. In some cases, there may be a fee associated with replacing a lost gift card. It is important to read the terms and conditions associated with your gift card to understand the specific rules and limitations.