For your information when later on we have to issue C/N, Regarding to above mention, customer have order Package # 2 , and add another 50 Rollers but end of the day they want another one package which consider to 50 Rollers that already issued invoice, as our goods not enough at the moment which assume shipment coming end or early next month, So my comment for them that we will remain the invoice as it was first, once goods arrived we will issue C/N and re-issue new invoice complete in package.