If your order has not yet entered the shipping process and is eligible for Amazon Prime Shipping, you can change the shipping method to Free Two-Day Shipping or upgrade to One-Day (Overnight) Shipping for $3.99 per item through the Order Summary in Your Account (http://www.amazon.com/your-account). When you make certain changes to an order via Your Account, our system re-evaluates our inventory to determine the best fulfillment plan for your order given the new information. Occasionally, this may result in a change to the expected shipment and delivery dates for the order. When you make changes to shipping address, or shipping method our system will re-evaluate our inventory and the delivery dates will change.