My Comcast Account

I got an email with a subject line of My Comcast Account.  The email said they were holding several emails due to the upgrade in internet service and to sign in to get them.  Well since i am already signed in why should i have to sign in again and I haven't.  Is this a legit email from Comcast.  The address that the email is from is notification@comcastcommunity.gd.com.  Since you can't get a customer service agent who can speak English why bother to call them.