Question: If I sent a letter with insufficient postage to a local address, how long will it take for it to be returned? I sent several letters with old 37 cent stamps twelve days ago.  So far, none of them have come back--but they didn't all have return addresses, either.  I'm just wondering how long it would take for them to be returned, and if they are not, can I assume that my local post office is too overwhelmed to check?

Answer: In Australia, if you post a letter with insufficient postage they still deliver it to the addressee.\nHowever if your return address is on the back they will send you a bill for the missing postage plus a fee.\nIf there is no return address they still deliver it to the addressee.\nNo one is charged the missing postage in that instance.
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