agent not helpful and had lack of empathy who can i talk to

I talked to an agent yesterday named Tamara Gluckman. I told her I wanted to try and get my bill down. We lost significant revenue from loss of skill machines. First she tries to sell me mobile I said I  don't want to increase my bill. I asked her why comcast went to Yahoo mail and she had no clue about that. I hate the yahoo mail by the way. She says she has a plan that will drop $100 from bill. When I looked it over, she put me in lower speed when I already told her I do bookwork and was happy with the speed I have. After that she did not even want to deal with me. She acted like I was bothering her. I love my comcast service but I am finding out Comcast has enough customers and don't care if they lose any I guess I will have to look for other options. If one of my employees did not try to help one of my customers I would want to know.