Comcast Worst Customer Service Ever

The Comcast tech came out to our house after we complained that the internet takes long to load webpages and webpages time out. The tech was not knowledgeable or helpful. He was arrogant and did not know how anything worked. He did not know the difference between WIFI and the internet connection. He said that my computer was not loading webpages quickly because of my WIFI settings when I was connected with a network cable. The Tech cut our long cable wire just to try prove a point and left us with a cable that is way to short for what we need so the router cannot be put back to the spot that it was in previously.