Fedex is wrong - replacements cross the border at zero dollars. You should have refused them and contacted us. We would have instructed Fedex, like we have to do about 1 in 20 shipments, that replacement are zero dollar and the customs tax was paid with the original modules. Once a customer pays the bogus tax, it is out of our hands, as fedex doesn't refund money once they receive money.
Please contact us at support@buffalotech.com and we'll work with you on getting that stick(s) replaced at no cost to you - and this time - don't pay the bogus tax.