Hi,guys. Thanks for ZOS great support and now I finally solved my problem and bought the transfer console! They really saved me and let me continue my ESO journey on PS4.
I know the way is a bit tricky but as the detecting code cant be updated on the console buying page, all we can do is to ask for update our ESO account register country to the listed SCEE/SCEA country.
I submit a ticket for this request yesterday, got the feedback today and my country is changed to US. Now I can buy the console package.
Hope this information will help you, especially the friends from Malta.
And hope we will meet at PS4. Best regards!