Don't worry! If you are missing an item from your order, it was most likely shipped separately.
To know if items are sent separately, refer to your shipping confirmation email. If the email displays multiple tracking numbers your order has been sent out in multiple packages and your missing item should show up soon.
If your shipping confirmation only displays one tracking number, or if the missing item(s) should be under the tracking number received, please contact us at firstname.lastname@example.org