Once your order has shipped, you will be sent a shipping notification with  USPS tracking information. Please check your junk/spam folder for this email. If you feel USPS has lost your order, please contact your local branch immediately to inquire about your lost package. You can also contact USPS customer service at 1 (800) 275-8777. Once contacting USPS, please also email Populum at support@populum.com with your order number. Populum is not responsible for lost packages.