[header] How to buy and sell safely online [title] After receiving payment via any method, you must authenticate the sending party to ensure that they authorize the transaction and they are whom they claim to be. [title] Ask for name, telephone, and address. [title] Use an online telephone directory such as 411.com and view their name and address. 
[step] This information should match what you were provided with. [title] Call them, whether the information matches or not, this allows you to confirm the order.