Please e-mail to acc@jetpcb.com / service@jetpcb.com for address update before the shipping date of your order. After you send the e-mail, we suggest that you contact us at 408-922-7278 or 408-922-3991 verifying your recipient address has been changed. If your order has already passed the shipping date, you must first contact us to see if your products have been shipped. If your products have not yet been shipped, we may update your address accordinlgy and by the above procedures. However, if they have already been shipped, you need to confirm with the recipient of that address.