Not receiving verification code

I am having the same problem that was reported

2 months ago by by forum member CBLENZ

Iam not receiving a verification code and

cannot register with the CDC to get my

covid19 vaccination. It requires a 2 part verification

To register. The code never shows up in my

cox email account. I can't use another email

addres because the link references my cox

email address. What is the fix for this I really

need some help with this.