There's a link and prices in the embedded tweet. Does this not show up on your device?A link so people can go and get it:
Our Deal of the Week changes every Friday between 12-12:30pm.www.anime-on-line.comhttps://www.anime-on-line.com/Matoi-the-Sacred-Slayer/28654-matoi-the-sacred-slayer-collection-12-blu-ray.html
And I guess I may as well state that it’s £9.99 on blu (or £4.99 DVD)
However; I seem to have purchased a copy for £3.99 in the xmas sale, so it’s not that good a deal, especially just a month later.