I just went to order yeast from the order page and found that it is out of stock on Amazon. I have found a substitute in the meantime. https://www.homebrewing.org/Wyeast-4134-Sake-Yeast_p_7779.html And you can use your Amazon account so you don't have to retype everything and put your information on another website.
I'll let everyone know what my thoughts are when it gets here.
Looks like the yeast is back in stock, but the Amazon page says they only have two left.