Frame customisation
As soon as you redirect the user to the confirmLink, kevin. frame page will be shown. However, some of the default behaviour can be customised.

Change the UI language

You can change the UI language by adding lang query parameter to the payment request.
For example: https://api.kevin.eu/platform/v0.3/pis/payment?lang=en
All available languages are defined in the official API description.
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