如果從海外購買了便宜東西,的確有可能被CBP認定 Antidumping and Countervailing Duties。https://www.cbp.gov/trade/priority-issues/adcvd
https://www.cbp.gov/trade/priority-issues/adcvd/scam-alert
郵寄地址也符合
https://www.cbp.gov/about/contact/payment-mailing-addresses
Regular Mailing
U.S. Customs and Border Protection
Bill Payments
P.O. Box 979126
St. Louis, MO 63197-9000