Ask HN: UK Credit cards with decent websites/apps?

My credit card supplier forced a password reset which has locked me out of their system and prompted me to consider switching. With a lot of banking sites I often find that they have annoying password constraints (mine won't now support non-alphanumeric characters in passwords, hence the reset), require supplying specific letters of a password (always annoying, and perhaps insecure) and if they do 2FA at all it's usually via SMS.

Does anyone know a credit card company in the UK which offers a website/mobile app where my password could be as long and complex as I please (within reason) and which supports Authy, Google Authenticator or similar for logins?