Here are the connections

A trademark for Amazing Bullet was filed by Craig Jones, on 6 October 2005, on 19 January 2006 the trademark was accepted, on 11 May 2006 the acceptance of the trademark was opposed by Homeland Housewares, LLC, on 25 May 2006 the opposition against this trademark was withdrawn (The opposition of Homeland Housewares, LLC against Jones, Craig has been withdrawn.) and on 25 May 2006 this trademark application was withdrawn.

Amazing Bullet with trademark number 1590463 was lodged on 08/11/2013 and has a status of Accepted - Awaiting Advertisement . The applicant/owner of the trademark is registered as David Bilanycz.  It probably has been approved by now.

The trademark for MAGIC BULLET was filed by Homeland Housewares, LLC. On 3 February 2005 this trademark was accepted and on 26 May 2005 this trademark was registered.

Homeland may not have had the trademark when you bought it.

Unfortunately you need very deep pockets to fight these things and companies know that, so they just ride roughshod over most individuals, because they know you can't afford to fight them even if you are in the right.