Adjust countries for orders

-- url of the page with the problem -- : ballenopmaat.nl/
-- HikaShop version -- : 6.4.1
-- Joomla version -- : 6.1.0
-- PHP version -- : 8.3

Hi!!

I actually only want to sell in a few countries. This has to do with VAT and shipping. For example, I received an order with an address in the Netherlands, but the form indicated a different country to avoid paying VAT; payment was also made.

Now I have created a zone with 3 countries in the order process, but I can't quite figure it out. There are examples on the internet of old Hikashop info that is no longer correct.

How can I ensure that I only receive orders from the countries I want?

I would appreciate your tips.

Greets
Maikel