This change encourages bidders to use PayPal, yet still ome eBay users have complained that provides some protection for bidders who do not. the company does not act quickly on claims under the guarantee does its best to however, the guarantee remains a powerful marketing tool. Buyers of more expensive items can protect themselves by using a third-party escrow service, which holds the buyer's payment until he or she receives and is satisfied with the purchased item. Escrow services are available through most auction sites. You will learn more about escrow services later in this chapter.