Hello,
When we click on the Prestige feature 1630032 [NPC Consumables I], an interface appears on the screen (you can see it below). When this interface appears and we click on an option, there is no go back button. So after shopping, I call the NPC again using our current daily rights to return to the previous screen.
I think it would be nice to be able to return to the previous menu while shopping. In this way, our daily NPC rights would not be wasted.