Award script Leaderstats tester?

How do I make this see if a Person is VIP? Script: (Not fully)

game.Players.PlayerAdded:connect(function(plr)
	script.DailyReward:Clone().Parent = plr.PlayerGui
end)
local DataStore = game:GetService('DataStoreService'):GetDataStore('DailyRewards')
local TimePeriod = 86400

function Give(plr)
	assert(coroutine.resume(coroutine.create(function()
		
		if plr:FindFirstChild("leaderstats") then
	 		local rank = plr.leaderstats[script.StatsRank.Value].Value
	
     		if rank = "RIX VIP"
			plr.leaderstats[script.Stats.Value].Value = plr.leaderstats[script.Stats.Value].Value + script.IncreaseByVIP.Value
			else
			plr.leaderstats[script.Stats.Value].Value = plr.leaderstats[script.Stats.Value].Value + script.IncreaseBy.Value
		end		
		
		local Gui = plr:WaitForChild('PlayerGui')
		if Gui:FindFirstChild('DailyReward') then
		local as = Gui.DailyReward.Frame
		as.Visible = true
		end
	end)))

end