Nice Online-Bank but without proper 'bill'
Perfect bank for mobile users. Each payment is shown in the App, and you could freely check each authorization.

The chatbot in the App could quickly answer all the questions. Even by failed login, when I tried to reach out to the human service manager by telephone, it didn't take too much time. 

The only problem might be, although it could be used as a credit card (as Mastercard), they don't really offer you a proper 'bill' but a 'statement of account'. That could be quite tricky if you need one (e.g., for your insurance).