Did you do the USDA importation paperwork as noted below?
USDA - importing small lots of seeds:
https://www.aphis.usda.gov/aph...
Importing Seeds into the United States from Canada:
https://www.seedwise.com/resou...
It's possible they are hung up at customs/inspection. I've been told when shipping things outside Canada that the tracking usually ends once the package leaves Canadian control because the receiving country doesn't keep it up.
