I'm glad you figured it out. That's usually the case when someone expects a certain service (e.g. Prime, Music Unlimited, etc.) and it's not on their account. Somewhere along the ride, they made two different accounts or their Echo is registered to a particular country and they're using it in a different country. Apparently using the same login account on Amazon.co.uk is different than Amazon.com, Amazon.ca, or any other regional Amazon site.