Somehow I Still Believe
This week was $250, the week before was when they didn't buy black tea, I think it was $170 or something ? I'm rewatching the last episode so I'll update you guys if I find out who ordered this week's shopping.
Edit: No they don't show you the ordering or who orders.
Maybe the week they got only 170 they decided to focus on the essentials because they didn't have a lot of money. And when they got 250 their eyes lit up and they started spending it on non essential items.