[buymycards]

If it was scanned as addressee unknown, it should be returned to you. You wouldn't believe how many people move and don't tell the Post Office, don't change their address with PayPal, eBay, Amazon, etc., and they don't give the Post Office a forwarding address.

It could also be the fault of the Post Office. Could be a new sub on a route who doesn't know his/her customers. What concerns me is that it should have been scanned as "attempted", and then "addressee unknown".

Rick