Follow these steps to change your email address:
1. Access the My Account page as described in How to Add or Update Your Profile Information.
2. In the Profile details section, click the edit icon
3. Select Change email address
4. Enter your new email address and click Save
5. Check your current email inbox for a one-time password (OTP)
6. Enter the OTP and click Submit OTP to confirm
Your email address (username) is now updated.