The product I just purchased now says it is out of stock! Should I be worried?

Once you have completed an order, the product(s) you have purchased are reserved in your name. Even if the item goes out of stock afterward, it should have no effect on your existing order. If a pre-order item is listed as being out of stock, that means our allotted number of pre-orders have all been purchased. Any orders that have been completed up until this point will proceed normally once the pre-order item has been released.