If I remember correctly there was an issue with the website that was making shipping costs the same for all orders (some sort of major update). Taiwan Tea Crafts embraced this and sent out word that people could make use of this "glitch" while it was available. I checked the site after you posted here and the site is still giving a "404" error code. It could be that the site is down while they fix whatever glitch had been causing the shipping issue and/or putting the finishing touches on the "major update."
I think that it was just a small issue with their website, but the orders are processed and shipped as usual, as a matter of fact I placed an order just before the 404 error, and has been regularly shipped.