Multi-Factor Authentication Code Set Up Problem

When I try to enable my email multi-factor authentication for my account and follow the "Set Up" instructions, using the following steps:

1. Go to Account Settings > Account. 
2. In the 2-Step Verification section, click Set Up.
3. Click Set Up.
4. Select Email and click Next.
   
   • The following window confirms you’ll use email MFA to sign in. Click Submit to continue.
5. Select the email you’d like to use for the Box login.
6. Enter the code sent to the email you selected for MFA.

Number (4) step does not appear for me to "select email" in order to proceed through the remaining steps.