Here's how you can change your registered email/user ID:
1. Login to TimeRewards.
2. Go to Setup under Preferences in the Sidebar.
3. Select Company Info.
4. You can change your email ID, billing email ID and user ID.
Please note that the new email ID should not be previously registered with TimeRewards.
5. You will get a verification email to your new email address.
6. Once verified, your new email ID and user ID will be updated in the system.