Canada UPS delivery

I received a pair of interconnects from Canada a week or so ago. Shipping cost were $20.00 for UPS ground. Today I get a bill from UPS for another $19.00 Listed as "Entry prep fee" under brokerage service. Funny how this stuff gets swept under the carpet till after the sale is complete. Does that sound about right? $39.00 to ship a ten-pound item from Canada to the US insured for $500.00. Where did I go wrong in this deal?