So this dude in this topic
SO I used 2 of his posts the one above and if u click it and scroll up and it worked, but when it gives me the tool it gives me 2 instead of 1. someone please help 
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Can we see your script so we can identify the issue?
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game.ReplicatedStorage.ToolPurchase.OnServerEvent:Connect(function(player) --Runs when the remote event is fired, change 'ToolPurchase' to the name of the remote event if you changed it
local clonedTool = script.Parent.Teddy:Clone() --Clones the tool, change 'Tool' to the name of the tool and change script.Parent if it is in a different location.
clonedTool.Parent = player.Backpack --Puts it in the player's backpack, 'player' being the parameter automatically passed through which tells us who fired the event.
end)
script.Parent.MouseButton1Click:Connect(function() --Detects for when a player clicks the Gui
script.Parent.Rotation = math.random(-9,9)
script.Parent.Visible = false
wait(0.001)
script.Parent.Parent.Teddy.Visible = true
wait(2)
game.ReplicatedStorage.ToolPurchase:FireServer() --Fires the remote event (change ToolPurchase to the name of the remote event if it is named something different)
end)
And I have a remote event everything works but it just gives me 2 tools instead of one
script.Parent.Touched:Connect(function(hit) --Event fires when the part is tocuhed
if hit.Parent:FindFirstChild("Humanoid") then --Confirms it is a character
local player = game.Players:GetPlayerFromCharacter(hit.Parent) --Finds the player
if player.leaderstats.Cash.Value >= 50 then --Checks for the right amount, change 'Cash' to the name of your stat
game.StarterGui:WaitForChild("ScreenGui").Enabled = true --Change ScreenGui to the Gui name
game.StarterGui.ScreenGui.Parent = player.PlayerGui --Inserts the Gui into the player so only they can see it
end
end
end)
Hiya! I recommend you using a debounce variable, like:
local debounce = false
game.ReplicatedStorage.ToolPurchase.OnServerEvent:Connect(function(player)
if debounce == false then debounce = true --Runs when the remote event is fired, change 'ToolPurchase' to the name of the remote event if you changed it
local clonedTool = script.Parent.Tool:Clone() --Clones the tool, change 'Tool' to the name of the tool and change script.Parent if it is in a different location.
clonedTool.Parent = player.Backpack --Puts it in the player's backpack, 'player' being the parameter automatically passed through which tells us who fired the event.
debounce = true
end)
Hope this helped ya! 
Maybe check to see if there is a tool already in the player’s backpack? Like so:
game.ReplicatedStorage.ToolPurchase.OnServerEvent:Connect(function(player)
if player.Backpack:FindFirstChild("Teddy") then
-- Object is there, do nothing
return
else
local clonedTool = script.Parent.Teddy:Clone()
clonedTool.Parent = player.Backpack
end
end)
Yeah that didn’t work either. : rip
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break statement must be inside a loop
says that.
Change it to return, instead of break.
Okay, I will give you a tip.
[OFFTOPIC] Since exploiters can spam remote events, NEVER TRUST THE CLIENT.
copy the code from the script that listens to the remote event, and put it in that script.
Example:
script.Parent.MouseButton1Click:Connect(function() --Detects for when a player clicks the Gui
local clonedTool = script.Parent.Tool:Clone() --Clones the tool, change 'Tool' to the name of the tool and change script.Parent if it is in a different location.
clonedTool.Parent = player.Backpack --Puts it in the player's backpack, 'player' being the parameter automatically passed through which tells us who fired the event.
end)
Hope it helped you.
Thank you for helping me!
also thank you @BenMactavsin
for helping too!
edit: Ima Solution this post so I can give Solution button to both of ya 
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