How to Change / Update Account Username? BHAVESH KUMAR September 17, 2018 13:49 Updated Unfortunately, account username can NOT be changed or updated. Related articles Will I get Real and Unique Installs? How to make payment via Paytm (INR)? How to Change / Update Account Email? Can I get a Refund? How to Report Campaign related Issues / Problems? Comments 0 comments Please sign in to leave a comment.