If you followed the instructions here and you couldn’t change the email on your Epic Games account, there are two main reasons why:
When you log in, the GENERAL SETTINGS page displays.
Scroll to the ACCOUNT INFO section. You’ll see an error message that says that You are limited to only one alternative email. Please check your email to verify the address.
A Confirm Cancellation pop-up window displays.
Click Confirm to cancel your email change.
If you want to try changing your email address again, follow the instructions here.
Let us know how we can help you.