Hi,
i am glad to pay my import taxes, the problem is that when you pay with bitcoins you do not have a receipt to show them, and most of the time even if you put an invoice inside the package they will not trust it and ask for a bank/cc statement or paypal recipt...
And they want a valid payment invoice/receipt to calculate the import tax.
i bought some blade eruptor from asicminer and could not get them to release them to me even giving them an invoice sent from friedcat because i could not provide a commercial invoice/paypal receipt.
Sorry if i cannot explain it better, they do not know about bitcoins and e-currency and everytime they ask me for a valid invoice.