We know that you might not be home to sign or collect your parcel and a signature may not always be required for delivery. If this is the case, the couriers may leave your parcel in a safe and secure mailbox or they will simply leave a calling card. The calling card will include details of your package, which will inform you that your parcel has been returned back to your local depot, upon which you will then be able to contact them to arrange collection or to reschedule a new delivery date.