Why does the purchased value doubles every time you buy it? >:((((

I have a developer product integrated into a GUI and it works just fine. It gives you 100 gold on purchase. However, when you buy it a second time it gives you 200! Can you smarter guys help me out?

 local MarketplaceService = game:GetService('MarketplaceService')
local devproductid = 44193926

MarketplaceService.ProcessReceipt=function(receiptInfo)
 for i, player in pairs(game.Players:GetChildren())do
  if player.userId == receiptInfo.PlayerId then
   if receiptInfo.ProductId == devproductid then
    
   
    player.Wealth.Gold.Value = player.Wealth.Gold.Value + 100
    end
   end
  
   end
     return Enum.ProductPurchaseDecision.PurchasedGranted 
end

when I looked, my first instinct was line 10, it might be adding 200 instead of 100 due to the script needing a debounce for the event processReceipt, as the event may be being fired more than once. Try something like:

local MarketplaceService = game:GetService('MarketplaceService');
local devproductid 		= 44193926;
local debounce		= false;

MarketplaceService.ProcessReceipt=function(receiptInfo)
if debounce == false then
	debounce = true;
 	for i, player in pairs(game.Players:GetChildren())do
	  if player.userId == receiptInfo.PlayerId then
   			if receiptInfo.ProductId == devproductid then


    			player.Wealth.Gold.Value = player.Wealth.Gold.Value + 100
   		 end
   		end

   	end
	debounce = false;
     return Enum.ProductPurchaseDecision.PurchasedGranted 
end