Once you've become a victim of fraud, fighting a chargeback is tough, so preventing it is usually the best choice. If you're completing a sale online, use lots of details and photos to show exactly what the customer will receive. Making sure to keep all documents, including invoices, shipping information and requiring a signature upon delivery will also help. Lastly, be suspicious of out-of-the-ordinary purchases and customers, including buying large quantities of a product, different shipping and billing addresses or asking an order to be shipped to multiple addresses.