I had a similarly disastrous experience with Revolut. I signed up with my US passport and everything went downhill from there. I was able to lodge €50 in to the account but couldn't verify myself (Revolut don't accept US passports as policy) and found myself in a awful situation trying to recover the €50. Revolut took two months to return the money to me.

I'm a massive fan of these apps though -- I use N26 personally . It works and I like that it's German (savings are guaranteed by German gov)