To file a complaint about the shipment & parcel delivery service of the United States Postal Service (USPS), including issues related to delayed parcel delivery, shipment, defective package delivery, logistics, domestic & international shipments, and postal mail, you can follow these steps and use the provided contact details:
USPS Customer Support:
- Customer Service Number: Call at the toll-free number 1800-ASK-USPS (1800-275-8777). For any technical issues, contact Technical Support at 1800-344-7779 during the same operating hours as customer service.
- Hotline: Dial 1800-222-1811 to track your domestic & international USPS package. To get help with stamps or other USPS merchandise, call at 1844-737-7826.
If you want to order free shipping boxes, envelopes, and postal forms, or to report a problem with your shipping supply order, dial 1800-610-8734 to talk with a representative. In some cases, if you’re unable to file a claim online, call the National Materials Customer Service at 1800-332-0317 to request paper Domestic Claim Forms.
Steps to file an online complaint:
- Visit USPS’s official website (usps.com).
- Navigate to the “Support” section of the menu.
- Click “Email Us” to open the online complaint form.
- Enter your tracking ID/AWS number.
- Fill out the form with required details including order ID, type of delivery issue, and supporting documents.
- Submit the form.
Finally, note down the reference/ticket ID to track status. You can also use the USPS mobile app to access online service or talk with a customer service representative. If not resolved, visit the local USPS office and submit a written complaint letter including the reference number of the unresolved case.
Approach Consumer Protection Authority:
If your previous consumer complaints are not resolved or your consumer rights are violated by USPS, file a consumer complaint with the Bureau of Consumer Protection (BCP) at the FTC or the California Department of Consumer Affairs. Include supporting evidence, details about the delivery issue and shipment service, and documentation of previous resolution attempts.
Still, have questions? 
ask by replying to us. We will help you.