279 a month is just too much with no options to lower it significantly

My triple play package which apparently is no longer an available package is now 279 a month.  I don't want the phone..I don't need all the channels. When I try to change it I'm basically told I can't get rid of the phone or 20 dollars can be knocked off the package for 12 months with a contract I'm sure.   How do I just cancel everything and start over and get the options I want? Do I go into an xfinity store? The few times over the years I have tried to even just get rid of the phone is almost been more expensive without it.  Any help would be appreciated unless I just have to cancel all service.. I just want basic channels and internet.. that's it. I have had xfinity service for 20 years now.. I would think it shouldn't be so difficult to try and change my plan to something more affordable.