I keep getting emails to return a modem (ser# asked for) I've never had. Checked My account and it's not there (of course because Ive never had it). Why am I getting these emails? What do I do since it's NOT on my account and I dont have it? Obviosuly a mistake.
Those are Phishing scams. Do not reply to them. Delete them.
@landerpiano wrote: I keep getting emails to return a modem (ser# asked for) I've never had. ...
If you check your email with Comcast's Xfinity Connect webmail (https://connect.xfinity.com/), look for the XFINITY Verified Email logo next to any message that claims to be from Comcast/Xfinity. See https://www.xfinity.com/support/articles/comcast-verified-email. If the logo is missing when you view the message in webmail, the message is not from Comcast.
Unfortunately, AFAIK the logo is not present when you view one of their emails in email apps or programs, not even Comcast's own email app. It's only visible when you use their web email site.