After talking to Comcast and Apple Help - the e-mails are gone.
We had looked "everywhere" they might be.
I finally got "jackie" at Apple Help and we found that my computer had been infected after she helped me install malwarebytes on it.
She also told me to turn off the computer when I'm not using it. I had been setting it on "sleep" because I was impatient with the starting process.
All the people I talked to were as helpful as they could be - considering what had happened.