Hello…
I don’t understand anything with the post office in Belgium anymore XD
1st shipment received no charge
2nd shipment… 18 eur fee
3rd shipment received… no charge
the difference between the 3:
on the 2nd shipment, it went through Switzerland via the ASENDIA company and therefore not the same label as the other 2…
another difference:
indicated on those free of charge: “category of item: Documents”
while for the one where I paid the fees: the “Safe of goods” box is checked
in summary… do not go through Asendia in Switzerland anymore please but send directly to us with “Category of Items : Documents” ^^
in this photo, mail from Switzerland is the first on the left.

I can provide other closer photos if you want to see where this cost problem could come from in Switzerland ^^