Developer Products not processing?

I have some code that checks if the player bought the product and awards them the proper amount of credits, I went to test this, yet I did not receive the credits like it should've given me.

Processing Script:

local MarketPlace = game:GetService("MarketplaceService")
local DataStore = game:GetService("DataStoreService"):GetDataStore("PurchaseHistory")
local Product = 24670894
local give = 50

MarketPlace.ProcessReceipt = function(ReceiptInfo)
        for i, Player in ipairs(game.Players:GetChildren()) do
                if Player.userId == ReceiptInfo.PlayerId then
                        if ReceiptInfo.ProductId == Product then
                                local stat = Player:WaitForChild("leaderstats")
                                stat.Credits.Value = stat.Credits.Value + give
                        end
                end
        end
local PlayerProductKey = "player_" .. ReceiptInfo.PlayerId .. "_purchase_" .. ReceiptInfo.PurchaseId
return Enum.ProductPurchaseDecision.PurchaseGranted
end

Prompt Purchase Script:

local Product = 24670894
local MarketPlace = game:GetService("MarketplaceService")
script.Parent.MouseButton1Down:connect(function(Player)
        MarketPlace:PromptProductPurchase(game.Players.LocalPlayer, Product)
end)