To block buyers in states, territories, or countries you don't want to ship to:

1. Go to My eBay > Account > Site Preferences.
2. In the Selling Preferences section, scroll to Shipping preferences, and then click Show.
3. Next to Exclude shipping locations from your listings, click Edit.
4. Select the states, territories, or regions you don't want to ship to. You can exclude entire continents or select Show all countries, and then select the specific countries you don't want to ship to.
5. All excluded countries you select will appear in the lower section of the page.
6. Select Apply to all current live listings to apply these exclusions to all your current listings.
7. Click Apply to save your requirements.