You may have your answer on another forum, but just in case I thought I'd mention that I also buy beads and findings from a variety of sellers in China, and have had some of the items I've bought in my watch list for quite a while, but there are typically anywhere from three to a dozen sellers or stores on eBay representing a larger wholesaler or factory (they will often have slight variations on their IDs or store names, or just use the same listing templates so they are easily recognisable) and every so often they change the countries they will post to.
Sometimes I've gone back to buy another of the same item from a specific seller only to find that they no longer ship to Australia and I have to find one of their other stores to buy it from. That can also be why their stores show 0 results if you click to view their other listings - they won't show in search results at all if they don't ship to your country.
I've also noticed that sometimes, they are able to keep a listing active, yet it's not available to buy and won't show in any search results. I had an item on my watch list for months, and bought it on two separate occasions, but the last time I went to buy it, even though the listing was definitely still active and had more than 10 available, there was no buy it now option. I kept checking back (they still had many other items and were still shipping to Australia, and they weren't on holidays) and after a couple of weeks the listing was finally ended.
