I have a basic free acct. & my daughter has a premium membership acct. which we would like to add me on. How do we merge my acct. with hers? (I’m already shown as an added member when I log into the acct. using her sign up email details, but get an error message when I try to log into my profile which she has added that “this acct. is no longer valid”.

What do we need to do?