The process to change your email depends on whether you signed up with an email and password combination or via Google Single Sign-on (SSO).
I signed up To Request with an email and password
You can edit the email addresses you used to sign up to Request Finance via "Settings" > "Personal Settings". You may have to re-authenticate yourself before being able to change this.
I signed up to Request with Google Single Sign-in (SSO)
Navigate to "Settings" > "Personal Settings"
Next to "Email Address", click "Change"
Request a password by clicking on "set a password"
Follow the instructions to set a password
Re-confirm your email address by clicking on the link sent to your email address
Log in with your email and the password you created in step 4.
Navigate to "Settings" > "Personal Settings".
Next to "Email Address", click "Change"
Update your email address and click "Update Email"
Follow the instructions to update your email