Shop/Marketplace

Often the Pro tip when starting the game tells me I can purchase items from the store (and one of the walkthrough sites mentioned a Marketplace which I assume is the same thing). I haven't seen any sign of the store. Can someone tell me if it exists in the PC Big Fish version ? If so, where please ?

Hi Hine,
GBU2.
It's "not" in the game that you "bought" thru another site, like Big Fish or IWIN.
It's "only offered" thru LDW and on FB versions of the game.
GBU and yours.

It's really frustrating then that it keeps mentioning it !
Thanks