I have been informed via e-mail that my package was delivered, however, there is no package here or at my postal station? What do I do now? This is an Amazon package.

Amazon delivers to your door. Doesn't go usps. Contact Amazon. Groupon goes usps and they have it inside the service center if it's a big package.

Doesn't work . I have had 3 packages stolen or undelivered. Almost 1000 dollars work of stuff missing. All " delivered" to my mailbox but nothing there

Inform Amazon. They typically will send another or reimburse you

Contact your carrier either by calling in the morning or by going to the station while they're there