Find out why USPS show my package as Delivered it just shipped?
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Your USPS Package Was Forwarded To A Different Address: Now What?
USPS recycles their tracking numbers
You can get a “recycled” USPS tracking number that will show another package's old delivery information and Mercari will be no help : r/Mercari
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Why does my package tracking only report label created in the details? – The Lawn Care Nut