My Question or Issue
I have a premium plan and I would like to have a family account, can I transform this account in a family account?
Each member of a Premium for Family plan has their own personal account - so you can use your existing account. The only thing that is changing is just the Plan.
All of your account details will remain the same.
You can find more information about Premium for Family here.
Let me know if you need more help, have a great day! :)