Before you buy, open the seller profile. Look at feedback score, review count and how long the seller has been active. Established sellers with thousands of reviews are far safer than brand-new accounts with perfect ratings and no history. Always complete checkout on the official marketplace domain with a lock icon in the address bar. Never enter payment details on third-party sites. DealX Stocks links only to official marketplace listings. Return windows, restocking fees and shipping responsibilities differ by marketplace and seller. Read the listing's return policy before ordering, and keep the order confirmation in case you need to open a dispute.