EBay is an online auction site that allows users to buy and sell items. Items won through eBay auctions are paid for using eBay's PayPal service, which makes conducting transactions very easy, though alternative payment methods may be used. Because personal and financial information is required to complete a transaction, it is best to understand the company's policies before registering for an eBay account.
A seller can choose to not complete a eBay transaction if the buyer does not meet the seller's bidding requirements. Common requirements include country of residence and method of payment. International sales can also be canceled if the buyer encourages illegal customs activities.