Make a Part invisible after a purchase?

--Thanks to @Sleazel for this script

local MarketplaceService = game:GetService("MarketplaceService")
local Players = game:GetService("Players")
local productId = 662920300

justOnce = true --set a debounce
function Shop(hit)
    if hit.Parent:FindFirstChild("HumanoidRootPart") then --only prompt players
        local player = Players:GetPlayerFromCharacter(hit.Parent) 
        if justOnce then
            justOnce = false
            MarketplaceService:PromptProductPurchase(player, productId)
            wait(1)
            justOnce = false
            end
    end
end
script.Parent.Touched:connect(Shop)

--process player purchase in seperate function
ServerStorage = game:GetService("ServerStorage") --best place to keep unused items

local function processReceipt(receiptInfo)

    -- this time find the player, by UserId of whoever made the purchase
    local player = Players:GetPlayerByUserId(receiptInfo.PlayerId)
    if not player then
        -- The player probably left the game
        -- If they come back, the callback will be called again
        return Enum.ProductPurchaseDecision.NotProcessedYet
    end

    --IMPORTANT
    if receiptInfo.ProductId == productId then
        --insert code here that will give player whatever they just bought
        print(receiptInfo.PlayerId .. " just bought " .. receiptInfo.ProductId)
    end

    --Instead of destroying the part, we move it to ServerStorage   
    --script.Parent.Parent = ServerStorage
    --you can destroy it to if you want to, use
    script.Parent:Destroy() --EDIT: Use this option for tycoon type game.

    return Enum.ProductPurchaseDecision.PurchaseGranted
end
 MarketplaceService.ProcessReceipt = processReceipt

I have a problem: The "window" with "Buy" and "Decline" the purchase, appear only the first time when people touch the part. If they click "Decline", they can't reopen the shop again.. same if people press "Buy", the part continues to remain in the world... I need create a "pleassure plate" where, when people touch it, they active the promptPurchase. If buy the DevProduct, the part disappear from the world or just remove

--Thanks to @Sleazel
    --script.Parent.Parent = ServerStorage
    --script.Parent:Destroy()

And if "Decline" the shop, it continues to stand in same position, waiting for someone to make the purchase and after someone buy, remove this part.

How i can fix it?

DevProductHandler

game.StarterGui.ResetPlayerGuiOnSpawn = true

local MarketplaceService = game:GetService("MarketplaceService")

function getPlayerFromId(id)
	for i,v in pairs(game.Players:GetChildren()) do
		if v.userId == id then
			return v
		end
	end
	return nil
end
 
MarketplaceService.ProcessReceipt = function(receiptInfo)
	local productId = receiptInfo.ProductId
	local playerId = receiptInfo.PlayerId
	local player = getPlayerFromId(playerId)
	local productName 
	if productId == 23408099 then
		productName = "+$2,000"
		local Money = game.ServerStorage.MoneyStorage:FindFirstChild(player.Name)
		if Money then
			Money.Value = Money.Value + 2000
		end
	elseif productId == 23408103 then
		productName = "+$10,000"
		local Money = game.ServerStorage.MoneyStorage:FindFirstChild(player.Name)
		if Money then
			Money.Value = Money.Value + 10000
		end
	elseif productId == 23407958 then
		productName = "Day One $1,000!"
		local cashmoney = game.ServerStorage.MoneyStorage:FindFirstChild(player.Name)
		game.ReplicatedStorage.MasterKey:FireClient(player,"PurchaseConfirm")
		if cashmoney then
			cashmoney.Value = cashmoney.Value + 1000
		end
	elseif productId == 23408109 then
		productName = "+5 Walkspeed"
		local char = player.Character
		if char then
			local human = char:FindFirstChild("Humanoid")
			if human then
				human.WalkSpeed = human.WalkSpeed + 5
			end
		end
	elseif productId == 671497722 then
		productName = "Tappeto Volante"
		game.ServerStorage.GoldenCarpet:Clone().Parent=player.Backpack
	elseif productId == 662920300 then
		productName = "Dropper"
		game.ServerStorage.UltimDropper1:Clone().Parent=workspace
	end
	game.BadgeService:AwardBadge(playerId,202303025)
	local message = Instance.new("Hint",workspace)
	message.Text = player.Name.." purchased "..productName.."!"
	coroutine.resume(coroutine.create(function()
		wait(2)
		message:destroy()
	end))

	return Enum.ProductPurchaseDecision.PurchaseGranted		
end