Seeds not Delivered?

Has anyone ever ordered seeds or anything for that matter, and on the tracking status it says delivered, but the item never showed up at your house? Is this a common thing, will the seeds show up later? They said they were delivered on the 12th which is weds however they didnt show up =S i called local post office and they said they delivered them. I'm soo lost, and depressed !!

My postal company is Canada Post aswell.

Check your front and back door, porch, or anywhere else it may have been left. You might also want to check with your neighbors. All else fails have the seller verify the address.