When I try to invite a family member, the invitation comes to the e-mail adress I send it to. Here is no problem. But when he accepts it, it changes into another (maybe old or never used) mail adress. The mail adress it changes to can't be accessed since passwords and secret questions are forgotten. How can it be that whenever I send the invitation, the invitation comes to the right mail adress but after accepting it, he can't log in with anything, won't see anything to make his password, and the mail in my family account changed to something else. I never had this problem with any other family member, and uninstalling spotify on the phone or using a free account mail wouldn't help, it kept on being a free account.