Upgrading iCloud storage in Europe

Hi!

So, I tried to upgrade my iCloud storage, I entered my Apple ID, my payment card info etc. It doesn't allow me to do that and shows, that I have to correct the error shown below, which is the following --European legislation requires banks to authenticate certain transactions--.

Have any of you been in such a situation and what should I do? Contact my bank or maybe try another way of storing my files?