A 2FA code is asked for upon login. This code is given by the Finom App.
Not everyone wants to use the app. I personnaly am totally fine with the website, desktop or mobile. For that, the SMS 2FA should be enough.
A direct option to get the code by SMS should be given on the “enter the code” popup, with a link like « get the code by SMS ».
For now, one has to click on « I’m having trouble » and then « I don’t have internet on my phone ». This works, but is a lie and asks for two cliks instead of one.