Thanks for reaching out here in the Community. We moved your post from Chats to the help boards as its content fits better here.
Premium Duo is a discount plan for 2 people who live together. One of the accounts is set as “Owner” and it’s the administrator of the plan. The other account needs to be joined by an invite. However, to accept the invite, your daughter needs to log in with her own account in order to join your Premium plan. In case she doesn’t have an account yet, she can create one for free here to continue with the joining process. If you need more info, we'd recommend checking this article. Hope this helps. If you have any additional questions, don’t hesitate to ask.
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