eBay is a relatively safe marketplace. Unfortunately, like most online marketplaces, it is vulnerable to scams. eBay tries to keep instances of scams occurring, but with more than 100 million members, and roughly $40 million moving through the site on a daily basis, this can be a little difficult. Sometimes, scams occur.
If you have been scammed, there are certain steps you need to follow to report the incident, and to try to come to a resolution. If you paid for the item through PayPal, the first step is to login to your PayPal account and open up a dispute for the payment. If you did not pay through PayPal, contact your credit card company. In most cases, if you have used one of these two cases, you will recover your money.
The next step is to use eBay's dispute process to report the seller. This is specifically for items that were not received, or items that were significantly different than what was described in the auction. eBay also has a buy protection program to further protect buyers. If a settlement cannot be reached with the buyer, the next step is to make an eBay buyer purchase protection claim.