Just came on to post this myself. Lots of titles appeared this afternoon as I've been checking the link daily, although it's not actually a listed link from their site.
Ordered 12 titles.
While flicking through the pages i kept noticing them becoming sold out then back in stock, so keep refreshing if theres something you specifically after
Got home from work to find 2 blus waiting for me but have checked my emails today and one of my orders has been cancelled. It was 4 emails and i think it was the four that i orderd together. Looks to me if they dont have one in stock they cancel the whole order.