Apple ID updated but old shows on iphone under my name
I went into Apple ID on my computer and had to change it because it was an old email address I don't have access to. (because I was making a new purchase which Apple wanted to send updates to that old address, even though the contact email had been updated?) On my iphone it automatically shows the new email/Apple ID now under settings> Name, phone numbers, email>apple id, but under the very top section of 'settings> Apple Id,icloud, purchases> under EDIT my name and icon, it still shows the old id in tiny letters. I turned the phone off and on and it is still there.
How do I update that?