I have been trying to cancel my Comcast internet+cable connection to a pure internet one for 2 years. (I haven't even set up my set top box.) But every time I c

I have been trying to cancel my Comcast internet+cable connection to a pure internet one for 2 years. (I haven't even set up my set top box.) But every time I call them they give me a promotional deal which costs less than pure internet (@the same speed).