2025-09-19 00:00:00 Maximize Your Costco Membership with CostRefund CostRefund helps you get money back on price drops for items you’ve already purchased at Costco. By tracking your receipts and reminding you to request a price adjustment on time, you can make the most of your Costco membership and never miss a refund opportunity. How It Works Shop at Costco – Buy items as usual. Track Your Purchases – Upload receipts to monitor price changes.