Closed Comcast Email

I have been a customer with Comcast for over 35 years.... Pay my bill every month on time.... Never been late.  Went to sign into my email account today only to find out that it was deleted with a message indicating that I was notified that if I didn't sign in that it would be deleted. I don't recall ever getting that email, but in either case I was on the phone quite a while with a representative today and really wasn't given a logical reason as to why. I needed this account for various reasons and maybe I am at fault for not going in regularly, but it makes no sense to me why you would just delete an email address. Who would think that an email address would be deleted? I was told that it cannot be reinstated...Is this correct? If that's the case, I'm not quite understanding how you can delete my account when I am active customer and in good standing. You left me holding the bag....