Horrible application
Horrible application. The support is ridiculous. The app never asked for Verification ID and just stated that I can't open an account, with no further explanation. With a message to contact support, with no link to support available. Support can be accessed only through an app that doesn't allow me to log in. In another review on Google Play, the support team simply replied with a link to an unhelpful documentation page.

I doubt the support even bothered to read the review.

There is no way to reach them to get an explanation.

Edit after N26s reply:
Basically what you're saying that when I was registered and provided my name, you have rejected my account based on my last name. According to your documentation, I'm a resident of a country that you allow to have an account. 

What I'm saying is that your application is bad, it didn't allow me to add any documentation and rejected me by my name