DMM Revision: Online Application for Postage and Fees Refunds
https://about.usps.com/postal-bulletin/2017/pb22477/html/updt_002.htm
WEBCurrently, customers requesting a refund for postage and fees must complete PS Form 3533, Application for Refund of Fees, Products, and Withdrawal of Customer Accounts. We will add an online option to allow customers to request postage and fees refunds for Priority Mail Express ® (postage, Sunday/holiday premium fee, 10:30 a.m. delivery fee ...
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