Loss of Channel 7 (ABC) Denver Colorado

I was gone from March 31 through April 13.  On April 14th, I was dismayed to see that Channel 7 was no longer part of the Xfinity package I have purchased and am still paying for.  There are many programs on ABC that I am missing.  A number of my friends are unhappy also with this development.  Please do what is needed to restore this channel to your lineup.