When I attempt to change my apple ID to my primary email, nothing happens. My primary email is an icloud.com email and my apple ID is a mac.com email. When I click continue to change my Apple ID to my primary email, nothing happens - it's as if something's broken, but it has always done this whenever I've tried to change it.
contact Apple ID Support. See the Apple Support articles below for contact information.
Apple ID - Official Apple Support.
Contact Apple for help with Apple ID account security - Apple Support. (Link doesn’t always load)
Get Support Work through the screens to get a chat option.
Apple Support schedule phone call
I am not sure, but it may be that those two emails are essentially synonymous for your AppleID. The @mac.com email is nothing more than an alias to your iCloud email account so both of those two addresses already sign into the exact same AppleID and either can be used to access it.
If you also have an @me.com address too, then it is also nothing more than an alias to your iCloud account and can also therefore be used to login to that same AppleID.
Since if you use any one of those three (@me.com, @mac.com, or @icloud.com) as the primary email, you cannot switch it back to a third party email - so I think the system is hung up on you trying to edit one of those (albeit with just an alternate alias already assigned to that AppleID) and it thinks you’re trying to replace the @mac.com with a 3rd party email? That’s the only reason I can think it errors out with you trying to delete that @mac.com address and not just swapping the existing aliases.
iCloud: About your @icloud.com, @me.com, and @mac.com email addresses - Apple Support
Have you checked this Support article to see if they have suggestions you haven't tried?
Yes. I’m not sure what the problem is. If I try to change it on my phone it says “your Mac.com email address cannot be removed” and if I try on a PC it doesn’t let me press ‘continue’, it just sits there doing nothing.
Unable to change my Apple ID
