Cannot change apple id email to an email that was once an apple id
My apple id account was opened 10 years ago by my mother (I was 12 years old and just got an ipod touch). She entered her mail obviously. Now I'm a grown man who needs his own apple id, so I want to keep the same account but change the email address. The thing is I created an apple id with my personal email address once and deleted it one week ago so I can change the email address in my acount to my personal email address. Although the account I wanted to delete has been deleted, I still cannot change my account email to this one. What can I do?
iPhone 12, iOS 15