Step 1
Open the Blitz App. (This also works on the web version of Blitz.)
Step 2
Click the cogwheel at the top right of the sidebar to open up Settings.
Step 3
In the "All Games" section, click the "Edit" button next to your email address.
Step 4
Enter the email you'd like to switch to and click "Confirm"
Step 5
Confirm the change via verification emails sent to both accounts.
That's it! Your Blitz account email should now be updated. If you're still experiencing issues, feel free to submit a ticket or contact us on Discord.