My husband sent the invite link to both me and my son. What do we do after we click "accept invitation?" It wants a log in, so we use my husbands and I get the following message: "Cannot join Premium for Family - Sorry! You're already a member of this (or another) Family plan. Please click below to switch to the account the want to join to family plan." I click "switch accounts" and it takes me back to a log in screen. Am I supposed to create a new account? This is not easy! It should be as easy as click accept and done, but it is not. So FRUSTRATED!