The conversation between human and AI assistant.
What do USPS tracking numbers look like?
What should I do if my package is marked as delivered but I haven't received it yet?
You should contact USPS to report the issue as soon as possible. They may be able to provide additional information, such as the delivery date and time, and offer assistance in finding the package. Additionally, you can contact the sender to confirm the delivery address and inquire about any additional details that may be helpful.