Hi @LynnShep
Welcome to the Community and thanks for your post!
I'm sorry for the problems you're having watching Now TV content on the app when you're out and about. I understand that you've recently ordered the service. On the order confirmation email, there will be a link to take you through to Now TV's website to create a password. Can you check all you email folders to make sure you definitely haven't received it?
Post back and let me know how you get on. If you're still having bother we'll be about to lend a hand.
Cheers,
Robbie