why doesn't this script change the text of my billboard GUI?

local BillboardGui = game:GetService('ReplicatedStorage'):WaitForChild('BillboardGui')
local text = script.Parent.Parent.TextBox.Text
script.Parent.MouseButton1Click:connect(function()
	BillboardGui.frame.TextBox.Text = text
	print ("text changed")
end)

In your variable, you are basically saying that the text of that is the text that's already in the change box, I recommend you use string such as this:

text = "Whatever text you want"

Edit: Invite me to your game, my username is Moyfe.