Review Disappointed

Recently I ordered 2 xp pen tablet. Both totaled about 150us. CIF was 500+ according to Aeropost receipt. I did send the correct invoice showing cost of items. I queried at Aeropost as I was charged govt taxes and fees. Their response was the xp pen TABLET is not a tablet. But... same item shipped via another skybox, no govt charges or fees were applied. So, what is a tablet?