Unable to join new Family Sharing group due to Apple Music subscription restriction

Hi there

I bought my Apple Music subscription legally, but I’m having some trouble joining a new Family Sharing group. It says my account can’t switch families right now.

I think it’s because of the limit on how often you can change family groups, but I’d really appreciate it if you could help me reset that restriction so I can join the new family linked to my Apple Music plan.

Thanks a lot for your help

[Re-Titled by Moderator]

Original Title: Family sharing