Hi:
Autodesk provides access to BIM 360 Plan through our Education programs. Unfortunately, I am not familiar with how this is set up in the UK/Ireland. In the US, educational institutions submit a form that explains how they will use the software (i.e. research, curriculum, etc.) and the Autodesk fulfillment team creates a web account for them.
BIM 360 Plan was released in the US 6 weeks ago, and currently we only have the US version. It can be accessed in the UK/Ireland, but it is not localised (uses American date formats).
Thanks for your interest in BIM 360 Plan.
mike.d
Head of BIM 360 Product Management & UX