Developer Product script wont work?

Basically i tried to change this script so that it would give player points instead of gold and health but it doesnt do that (This script is in workspace)

local MarketplaceService = game:GetService("PointsService")
    local HealthID, GoldID = 20215653 , 20215669
    local PurchaseHistory = game:GetService("DataStoreService"):GetDataStore("PurchaseHistory")

    MarketplaceService.ProcessReceipt = function(receiptInfo)
        local playerProductKey = receiptInfo.PlayerId .. ":" .. receiptInfo.PurchaseId
        if PurchaseHistory:GetAsync(playerProductKey) then
            return Enum.ProductPurchaseDecision.PurchaseGranted --We already granted it.
        end
        -- find the player based on the PlayerId in receiptInfo
        for i, player in ipairs(game.Players:GetPlayers()) do
            if player.userId == receiptInfo.PlayerId then
                -- check which product was purchased (required, otherwise you'll award the wrong items if you're using more than one developer product)
                if receiptInfo.ProductId == HealthID then
                    -- handle purchase. In this case we are healing the player.
                   game:GetService("PointsService")AwardPoints(player.userId,200)
                 elseif receiptInfo.ProductId == GoldID then
                 game:GetService("PointsService")AwardPoints(player.userId,400)
                end
            end
        end
        -- record the transaction in a Data Store
        PurchaseHistory:SetAsync(playerProductKey, true)   
        -- tell ROBLOX that we have successfully handled the transaction (required)
        return Enum.ProductPurchaseDecision.PurchaseGranted    
    end

This one is in the actual GUI button (Local Script)

--Local script
        id = 20215712
    sp = script.Parent
        p = game.Players.LocalPlayer

        sp.MouseButton1Down:connect(function()
            game:GetService("MarketplaceService"):PromptProductPurchase(p, id)
        end)