Is it possible to redirect user to a separate (ideally bank co-branded) page where they can submit their username and password? Something like authentication performed on a payment gateway.

In line with the requirements of our FSRA regulatory licence to be open and transparent with end-users, we have taken the decision not to use bank logos as part of the authentication journey. We constantly look at ways that we may improve the customer journey and this decision is frequently under review. If anything changes, we will let you know.