[atlas] Customs value of Atlas Probe

Hi All, I'm fighting a bit of a battle over the value of the ripe atlas probe for the purposes of taxation (they are insisting it's value is more then $300 CAD and over $50 in taxes is owed to import it) and in order to fight this I need to provide proof of value, however, I obviously don't have a purchase receipt to show them. Is there any form that RIPE provides which shows the value of the Atlas probes for customs/import purposes that I can include with my case? Thanks!