As far as I can tell, they ship free to EU countries and then paid to other European countries:
“In Scandinavia and the rest of Europe we send our shipments with regular postal letters or DAO (DAO only for shipments over 135 euros). We always try to deliver directly to your adress with DAO, but in some instances this is not always possible (fx. to many adresses in Sweden DAO will only send to parcel shops for delivery). Both regular postal letters and DAO take between 3-6 weekdays to reach the destination (but do expect longer delivery of ordering around hollidays and vacation periods). OBS! WE SHIP OUTSIDE OF EU, BUT WE HIGHLY RECOMMEND THE ´STEALTH SHIPMENT´ OPTION - WE WILL ONLY REPLACE SHIPMENTS CAUGHT IN CUSTOMS IF YOU CHOOSE ´STEALTH SHIPMENT´ - WE WILL NOT (!) REPLACE ANY NORMAL LETTER SHIPMENTS, NO MATTER THE SIZE! IF YOUR LETTER GETS CAUGHT, IT`S ON YOUR OWN DIME!”