Is there a reason why I can't get my VDSL connection setup with another modem (Vigor 130)?

Is Voda VDSL IPoE? or PPPoE? Or another? 

I feel like I'm missing something as my login details aren't working on PPPoE, but why would Voda tell me those were my login details and then not let me use them?

Anyone able to shed some light on this for me?