Joined: Oct 2018
Posts: 2,182
Likes: 1,055
From: Columbus, OH
Bikes: Pake C'Mute Touring/Commuter Build, 1989 Kona Cinder Cone, 1995 Trek 5200, 1973 Raleigh Super Course FG, 1969 Raleigh Superbe, 1986 Miyata Nine : 1960/61 Montgomery Ward Hawthorne "thrift" 3 speed, by Hercules (sold), 1966 Schwinn Deluxe Racer (sold)
Shimano North America uses a dealer system; Shimano is not in the business of retail. The website you mention states that the management team is in Montgomery, Alabama, but provides a contact address of 2 Broadway, New York. I agree that the whole thing is fishy, though I'd try to contact the vendor to gain a greater understanding.
If they don't answer or jerk you around, contest the charges with your CC provider and request a new card number.
If they can provide the tracking information and you can see it was shipped yourself, ride it out and use better sense in the future.