Mine is with Comcast/XFINITY
I wanted to switch to them because they offer faster internet speeds than what I have. The tech that came out told me that it is not available at my location even though I used to have it when I moved in back in 2007. He then told me that the box outside was broken and he'll have to put a ticket in to get it repaired.
I get texts telling me to call XFinity to provide more info. I do and after they verify my address, they try to pitch other services such as their mobile phone service to me and they won't take "I'm not interested" for an answer. They can't get the service I signed up for working but will launch high pressure sales tactics to try to get me to sign up for more services.