That's a great win for you and your customer! They are getting a better product at a better price than they planned, and you have a bigger order - much better this way than simply raising the price of a $12 item to match their budget. Imagine how they would feel if they somehow found out that you had charged them $19.50 for a $12 item? Remember, this forum is viewable to the public and a simple search could find this thread...