Demo mode solved
So I wanted to install Cakewalk on a student's PC,
so put the Bandlab assistant on and when asked what kind of account,
I asked the student to use her google account.
We installed Cakewalk, but it ran in demo mode.
Then I asked her to log out of the google account and sign up for a bandlab account.
Log in with that account and it's all good.
I never had this problem myself because I signed up for a bandlab account with the same e-mail
I used to purchase SPLAT, but I remembered some forum users talking about suffering with demo mode,
so I thought I'd share this here.