I am an additional cardholder, can I still make online payments?
Short answer: Yes, but with the approval of the authorised user. This is the person who is authorised to use B365 online for the business current account. The difference that SCA makes is that additional cardholders may now need the authorised user to authenticate the transaction before they can be completed using the business debit card.
You will not always be asked for this, but when it is needed, the authorised user is the only one who can approve the transaction you are making.More about making payments as an additional cardholder.