How to change apple ID

Might be difficult, what Browser are you using?

How to change your Apple ID to a different email address

1. Go to appleid.apple.com and sign in.
2. In the Account section, choose Edit.
3. Choose Change Apple ID
4. Enter the email address that you want to use. If you choose a me.com, mac.com, or iCloud.com address, you won't be able to change your Apple ID email address again.
5. Choose Continue.
6. If you changed your Apple ID to a third-party email address, check your email for a verification code. When you sign in with your new Apple ID, you need to enter the verification code. Learn what to do if you didn't get the email.
7. If you use services like iCloud or Messages to share with friends and colleagues, sign in to those services with your updated Apple ID.

https://support.apple.com/en-us/HT202667

Hello,

I am having a difficult time understanding your question. Could you please restate your question while providing as much detail as you can?

Writing an effective Apple Support Community post

Any luck yet?

Do you mean the Username, if not have you signed out of iCloud & signed back into iCloud with 7602's Apple ID?

We need more help here, I'm at a loss. :(