thats not totally true, i imported some stuff and the manufacturers forgot to include parts , when the forgotten parts arrived (which i had already paid for on the original shipment) , UPS gave me an invoice for the import tax and vat (plus their £10 fee to raise their invoice), when i questioned about the invoice stating "no commercial value", they replied
"ye everyone tries that on, so we went on the insurance value of $50"
oh boy did i kick up a fuss,
i dont mind paying my dues but not twice ,
companies like dhl and ups are a law unto themselves as far as duty is concerned, i got a £300 import duty bill for some parts so i tried to contact ups because they had calculated the charges wrongly, its a friggin answerphone in their customs dept and no one ever gets back to you.
cheers nomad