I have a suggestion regarding the Cumulus credit card. I would like it to be possible to pay the bill via e-banking using e-bill. I regularly check my expenses in my account, but when it comes to paying the bill I always have to check my account and then make the payment manually in e-banking. With most other credit cards, payment by e-bill is also possible. At best, I would also welcome a direct debit procedure.
Another advantage would be that the statement is then immediately displayed as a .pdf file in e-banking and you can save yourself the e-mail and logging in.
In case some people don't know what is meant: https://www.e-rechnung.ch/de/E-Rechnung-Rechnungen-im-E-Banking-empfangen-pruefen-bezahlen-105.html