The United States Postal Service (USPS) dates back to 1775 when Benjamin Franklin was made the first Postmaster General. Since then, the USPS has been delivering letters and packages throughout the United States. Billions of pieces of mail are sent through the USPS every year and, occasionally, some pieces of mail get lost in transit. If you have been expecting a package but it never arrives, then you need to contact the USPS.
Utilize the USPS "Track and Confirm" tools. "Express mail", mail with "Delivery Confirmation" or "Signature Confirmation", "Certified Mail", mail that has been insured, mail with "Delivery Confirmation" and mail with "Signature Confirmation" can all be tracked using the USPS website "Track and Confirm tool. You can also call the USPS at 1-800-222-1811 to track mail by providing your tracking number.
Wait the required amount of time before contacting the USPS about your mailing. Mail that is sent as "Priority Mail" or "First Class Mail" has a delivery time of five business days, registered mail has a delivery time of 15 business days and insured mail has a delivery time of 21 business days. "Delivery Confirmation" and "Signature Confirmation" mailings have a delivery time of nine business days. You must wait at least this period of time before contacting the post office.
File a claim or have the USPS research your lost mailing. If you mailed your item as "Registered Mail" or with insurance and it gets lost, then you must file a "PS Form 1000--Domestic or International Claim." You can obtain this form from your local post office. You must also provide evidence of the item's mailing and value. For any other lost mailing, contact the USPS at 1-800-275-8777 to have it record the lost mailing and conduct research into its whereabouts.