Who can I speak to that can actually help me with waiving charges associated with disconnecting service?

I need a direct email contact for someone who can actually do something about waiving the charges associated with disconnecting Comcast business services. It has been 2 months of trying to get in contact with someone at Comcast who will help, and 4 hours on the phone JUST TODAY being bounced around between departments. 

I need a direct email immediately for or from someone who can actually help me. The lack of service or help that we have received as a small business customer with Comcast is honestly unacceptable and predatory. Comcast is a multi-billion dollar company and I'm supposed to believe they cannot find anyone who knows how to help with this?