I have Facebook credits, can I use them to buy things in the game?

Yes, you can use existing Facebook credits to buy Pawn Stars packages. Click on the package you wish to purchase; if you already have credits you will still receive the Facebook pop-up asking you for your method of payment, however, you will not be charged. The next screen will say, "Spend X credits on Y Candies?" and at that time you can confirm that you wish to spend your existing Facebook Credits.