Comcast discontinuing non-published listings

Received notification of a credit today and when I logged in to check, I learned that effective today (March 5), Comcast is no longer including non-published or unlisted service as part of the phone service.

Going back to my November statement, there is no notification of this whatsoever on any of the bills, this just came out of the blue.

I don't believe they can change service of this type without notifying customers in advance.