Modelo 720 (Wealth Tax)

Hello all. Is there anyone out there doing their own Modelo 720 i.e. accessing the Agencia Tributaria website & completing & submitting the Modelo document for declaring assets held in the UK?

I want to at least see whether I am able to do this myself but I am having great difficulty in accessing this specific area of the site & I keep getting error messages when I attempt to sign in with my NIE.

If anyone has been successful in submitting this tax return I would love to hear from you so I can pick your brain if you are prepared to do so. If so, perhaps we could do this by private message.

Thanks