help with a bait and switch incident- who do I contact- BBB??

I have spent hours on the phone- I was scammed by a Comcast agent who promised me that the new plan he initiated would definitely include ALL of my previous channels- I repeated this at least 3 x and every time he assured me I would have all the channels and services I had previously. He did a Bait and Switch transaction. I tried to reverse this within 24 hours - I discovered all the missing channels.  Could not reach any agent who would address this mattter N - they only try to sell additional services. I cannot reach a manager or retention supervisor or Comcast's legal department.

What recourse do I have other than leaving Comcast . I have never encountered such unethical business practices as those of Comcast. I guess that is x finity's MOA.

Are there any ongoing class action suits against this company?