[Not answered yet] How do i make it so if people buy my vip game pass they get money?

I have tried editing a already made code for something else but this still doesnt work the script also has a IntVaule where i put the game pass id to make it easier

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--| WaitForChild |--
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-- Waits for parent.child to exist, then returns it
local function WaitForChild(parent, childName)
    assert(parent, "ERROR: WaitForChild: parent is nil")
    while not parent:FindFirstChild(childName) do parent.ChildAdded:wait() end
    return parent[childName]
end

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--| Variables |--
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local GamePassService = Game:GetService('GamePassService')
local PlayersService = Game:GetService('Players')
local Leaderboard = Game:GetService('Leaderstats')
local LightingService = Game:GetService('Lighting') --TODO: Use new data store service once that exists

local GamePassIdObject = WaitForChild(script, 'GamePassId')


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--| Functions |--
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-- When a player with the game pass joins, give them $25,000
local function OnPlayerAdded(player)
    if GamePassService:PlayerHasPass(player, GamePassIdObject.Value) then
        player:findFirstChild("Leaderstats").Credits.Value = "25000"

        end
    end
end