You will receive an email from either USPS.com or stamps.com providing you with a tracking number(s) for the kit(s) that were shipped. If you do not see the receipt in your inbox, please check your spam or junk folder in case it was sent there by mistake. If you do see the email in your junk or spam folder, please add us to your email address book so you don't miss any other email's that might be sent.