OK, I’ve figured it out and it’s massively confusing.
I’m not sure what ‘which wallet I’m on’ means but what I was doing was:
- open the app (which shows the blue screen where I can scroll horizontally to see balance in various currencies),
- scroll until balance in CHF is shown (which is the first balance so it’s not much scrolling anyway ),
- click the ‘+’ icon with ‘Top up’ label and continue as above.
However, if I go to the ‘Account manager’ (by clicking the settings (?) icon in top left and from there click on one of the accounts I get correct bank details.