Before buying, read the return policy for the exact seller and item and record eight fields: whether the item is eligible, when the deadline starts, the number of days, required condition and packaging, authorization steps, return destination, shipping or restocking costs, and refund method and timing. Check separate rules for sale, final-sale, personalized, opened, oversized, refurbished, and marketplace items. Save the policy and checkout terms because a headline such as 30-day returns does not explain the full remedy.