function useCoins(id)  
    local cont = Container.GetFirst()   
    while (cont:isOpen()) do
        for spot = 0, cont:ItemCount() do
            local item = cont:GetItemData(spot)  
            if (item.id == id) then
                if (item.count == 100) then
                    cont:UseItem(spot, True)
                    sleep(500)
                    return true
                end
            end
        end
        cont = cont:GetNext()  
    end
    return false
end
while (true) do
    useCoins(3031)--gold
    sleep(500)
    useCoins(3035)--platinum
    sleep(500)
end