I sent out multiple USPS International 1st class packages 10 days ago and all were return to sender. There was a box that was checked and reason was for missing.. nothing else.. Spoke to the postmaster and he said it was good, but had no clue as why it was returned. He said it was due to US customs.. called US customs and no idea either.. this is happening to others forsure, nobody is taking responsibility or explaining what the issue is. Usps won't refund cause they say it's US customs
