The order total on your checkout page includes all items ordered, plus shipping and handling, discounts, coupons and any applicable taxes charged. Sometimes the invoice total included in your package may vary if an item becomes unavailable or goes on backorder. Taxes, shipping and handling or charges are adjusted according to the actual items shipped. Your credit card will only be charged for the items that are shipped, unless you or we specify, as on transactions with backordered items, to ship separately.