Okay, so my plane landed in Riga early this morning and I got the SMS. I called them and they agreed to open the card, and now the app shows the card as working normally.

Funny thing: If you want to buy Finnair Avios with a Finnair Visa, this transaction is so suspicious that the card issuer flags it and closes your card.

No real harm done, did not need the card for anything else during this time and I always travel with enough cash so I don't need to rely on cards. Lost 2100 points because I had to do the Avios purchase with my Amex.