CERTIFICATE OF POSTING
certificate of posting: translation
certificate of posting cerˌtificate of ˈposting noun certificates of posting PLURALFORM [countable]
a document given to a customer by the post office as proof that a letter or package has been posted; = registered mail receipt AmE:
• If you do not obtain a certificate of posting, we are not legally liable to pay compensation.
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certificate of posting UK US noun [C] (plural certificates of posting)
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In the event your item is lost or damaged in the mail, you will have to present a stamped and signed certificate of posting with your claim for loss.