Complete details on current ebay policies can be found on eBay's Web site, so we won't go into all of them here. However, there are some you should know about before you begin selling on eBay
Duplicate listings occur when a seller posts more than 10 listings for identical items. The best way to list identical items is through eBay's Storefront, Fixed-Price or Multiple Item listings formats. Although there are reasons to list identical items at same time, enabling a single seller to list too many identical items at one time hurts buying experience.
If a seller lists in more than one category, categories must be relevant. Any additional identical listings will be ended by eBay. There are a few exceptions: Sellers who list general admission tickets in Tickets category may list up to 20 identical listings, and sellers of vehicle light bulbs may list up to 25 listings simultaneously.
No kids allowed: eBay requires that all users be at least 18 years of age.
Unpaid items: Winning bidders or buyers who fail to follow through with transaction face consequences. Nonpaying bidders receive two warnings from eBay before they are suspended. When a bidder doesn't pay, seller may request a credit from eBay for their Final Value Fee by filing an Unpaid Item alert.
Nonperforming seller: Significantly misrepresenting an item by not meeting terms and item description in listing, or failing to deliver an item for which you accepted payment, is a violation of eBay policies and may also be considered criminal fraud.
Outages: When eBay system experiences service outages, there is a structure in place to compensate users with credits on listing fees and/or listing extensions, based on type and length of outage.
Profanity: The use of language that is racist, hateful, sexual or obscene in nature in a public area is prohibited.
Prohibited and restricted items: As an eBay user, you are ultimately responsible for making sure that items you sell on eBay are legal according to all applicable jurisdictions and permitted by eBay policies.
Soliciting off-site sales: You may not circumvent eBay fees by using contact information obtained from eBay or any eBay service to complete a sale outside of eBay.
Threats: eBay policies prohibit making threats of physical harm to another user.
If you violate an eBay policy by either your action or content of your listings, you will typically receive an informational alert explaining violation and detailing any further action to be taken on your part. When deemed appropriate, eBay will end listing, and your listing fee will be refunded.
For serious or repeated violations of eBay rules, a user may be indefinitely suspended. Though indefinitely suspended users may be reinstated by eBay at its discretion, eBay also has right to determine at any time that suspension is permanent.