Can't complete iTunes purchase after bank authorization

Hi all.

I've changed my payment method on Itunes to my bank. All was well for a few weeks then I got asked to authorise due to European Legislation.

I have succesfully authorised on my banking app but when on this screen:

I do not redirect and Itunes is stuck on the continue the flow in your browser

So I cannot pay for anything.

Any help would be welcome.

[Edited by Moderator]