How to Delete an eBay Buyer on eBay

I had an eBay buyer outside USA bid on an item when I stipulated that I ONLY accept USA buyers. It was difficult to find the way to delete the buyer. Jonny responded:

That's happened to me before - such a hassle. Did you read this?

http://pages.ebay.com/help/sell/manage_bidders_ov.html#canceling