Reason why the shipping price to the USA is so high for card slabs

I forgot to explain earlier but the shipping cost to the USA is higher because of the $800 “de minimis” duty-free exemption that was removed in August 2025, introducing mandatory high tariffs. Since then, CTT (our national postal service) only allows documents to be sent to the US, not goods. That’s why I can ship stickers cheaply because they’re flat and count as documents but card slabs are considered goods due to their size and thickness. My only option for slabs is private couriers like DHL, DPD, or UPS. Currently, UPS is the cheapest, but it has a minimum price regardless of whether it’s a 4 pound package or a small envelope. For now, UPS is the best option for US customers but hopefully I'll be able to use my local courier again soon.