Sellers may exclude buyers at any time prior to the end of a listing and are free to cancel unwelcome bids. After a seller has canceled a bid, the bidder may not place a new bid without the seller's permission. Buyers who do not meet the seller’s terms as outlined in the listing also are not permitted to bid on or buy the item.
Additionally, members are not allowed to bid on or buy an item to disrupt a listing or to leave non-positive (negative or neutral) Feedback or detailed seller ratings for the seller.
Violations of this policy may result in a range of actions, including:
Limits on account privileges
Forfeit of eBay fees on cancelled listings
Loss of PowerSeller status
Failure to meet a seller's terms
Examples:
The seller states item will only be shipped within the U.S, but the buyer is registered in another country.
The seller states that buyers with negative Feedback are not permitted to bid on the listing, but the buyer has negative Feedback.
Report a buyer who participated in a listing without meeting the listing terms.
Buying with the intent to disrupt a listing
Examples:
Buyer places a bid that greatly exceeds the value of the item in order to prevent a sale.
Buyer bids on multiple items listed by a seller without intent to complete the sale.
Report a buyer who bid with intent to disrupt a listing.
Note: Buyers who don't respond or don't pay for items are violating the unpaid item policy, not the unwelcome buying policy.
Preventing Unwelcome Buying
In addition to reporting a buyer to eBay, there are several steps sellers can take to prevent unwelcome buying including:
Why does eBay have this policy?
This policy is intended to protect the integrity of the eBay marketplace by prohibiting conduct that would interfere with the completion or performance of eBay transactions.