I agree, open an Unpaid on day 4. Also, check your Buyer Requirements to make sure you've blocked buyers in other countries.

 

My eBay > Account > Site Preferences > Buyer Requirements

Tick the box for Buyers in Locations to which I don't post

and click Submit

 

 

 

http://offer.ebay.com.au/ws/eBayISAPI.dll?BuyerBlockPreferences

 

Buyers in locations to which I don't post
Block buyers whose primary postage address is in a location I don't post to.
 
This requirement can help you avoid buyers who agree to purchase your items without realising you don't post to their location.