It looks like it's being released by Geekify and is a traditional advent calendar with chocolate squares in "24 fun shapes molded from the world of Neopia, featuring Christmas Neggs, PetPets, scrolls and potions, paintbrushes, seasonal items, and more!" and one item code. They don't preview the inside of the flaps, so unclear if there will be daily stories.
It's a cute idea and I'm happy to see them branching out with merch, although I'm not sure I'm willing to spend that much on a chocolate advent calendar - maybe if it had a pin or something larger for the 24th