How do I block a buyer on eBay?
Blocking a buyer is a preventive tool, not a solution to an already open case. It is useful when you want to stop future purchases or messages from a specific buyer after a risky or abusive interaction.
Sellers usually need this when a buyer repeatedly causes trouble, sends abusive messages, or appears likely to create future problems. The confusion comes from assuming blocking alone will resolve an open return or dispute, which it does not do.
Add the buyer to your blocked buyer list through the official settings, and review your broader buyer requirements at the same time so similar problem accounts are filtered automatically in the future. If there is also a rule violation, submit a buyer report as a separate step.
Do not confuse blocking with evidence preservation. Save the message history and transaction details first if the situation may later involve a report, feedback request, or appeal.
Official eBay pages to review: