I saw the instagram advert about Vitra and as a user of Curve, I was immediately interested. I have even signed up to the BETA testing for Vitra (did this for Curve too).
I am sure as you all know, Curve had their issues with AMEX and lost their loosing battle.
I saw on the instagram advert, it does advertise AMEX as a card you can add to your Mastercard debit card. How does Vitra aim to keep AMEX an option and not face the same reasons that decided they would remove themselves from AMEX?