Only One Issue – Zombie Killer Squad Review

I love the game! Only one issue... I bought a lot of stuff on this game, including the Syndicate and Seananners characters, and then I had to delete it for a couple of months for space. Now I have re downloaded it and it won't let me get the things I already paid for without paying for them again! There's no 'Restore Purchases' button that I can find.
Review by Rating 3 stars on Zombie Killer Squad.