How can I determine how many other user IDs I have used in the past 15 years??
I have used iTunes for 15 years. I believe some of my library was purchased under different user names. If I can prove to Apple that I have been associated with the same email address since 1990, can I find out what other usernames I may have used and forgotten? Many of my songs appear with an exclamation mark in front of them after changing from Windows XP to 8.1. Thank you.