I paid for it, why cant I get it back?

So yeah I bought this app plus the snack pack upgrade pack with the gun, gummy bears and cough drops and it wont let me download the snack pack. So if you can have an option that will let me restore or re-download purchases youve made on your apps, then I will change my review.

Toshiworld about iMunchies (Popcorn, Candy, Nuts), v3.55