Xfinity TV Plan Changed without my knowledge

I am extremely annoyed with Comcast/Xfinity.  I have the XFINITY PACKAGE = - SELECT + MORE 210+ channels.  I as upsell a Mobile plan instead of having a landline.  However, my TV plan was downgraded to 10+ Channels.  I was not aware nor did I ask for this to be done.  I have called in to the Customer Service department a couple of times but was told they cannot restore my existing plan because it is a legacy plan that no longer exists.  Instead I was signed up for a new plan that is now costing >$50.00 more that I did not agree to.  I was told multiple times that they can help me but has never made any offers to get me anything similar to what I have...instead, they try to upsell me on different products/service.  I have requested to speak with a manager but no one ever call me back.  Extremely POOR SUPPORT.  I have already cancelled my mobile service and is looking to cancel my TV service as well.  I will keep my internet for now until I find another company who treats their customers fairly.