Centre code

When signing up I didn't enter a centre code although I do actually have one. Does this affect my level of access to the site's resources? If so is there a way I can go back?

Go to 'Settings' (in the orange bar above), then choose 'Enter Centre Code - I think this should do it.

Sorry - I didn't answer your first question: I think your status would be 'User' rather that 'Graduate', but I don't think it would restrict your access.