Fedex is charging me a 25% tax

I purchased parts from Canada for $1980. I paid Freight. Now I'm getting a bill for $494. That's bullchit. That's severe robbery. That's a 25% tax. what legal grounds do I have?
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"Slide down your throat?? We chew them, savor them, suck up the little juice left behind in the shell then swallow them. Only amateurs try to swallow them whole."
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as seen here: https://forum.bodybuilding.com/showthread.php?t=180019913&p=1636230303&viewfull=1#post1636230303