Intermittent internet

Been dealing with this issue for over 8 months now … you want me to keep paying but I have had multiple techs at my house and some SR techs snd no one can seem to figure this out.  They have blamed everything  but still show disconnects,I have been working with techs for multiple months but I guess they don’t bother talking to Comcast because I keep getting shut off “why should I pay for this [Edited: "Language"] service” but I was again promised a call back and it has now been over 24 hours and still waiting… I spoke with sharry yesterday she said she was ferrying me to supervisor and came back 20 min later after stating she was transferring me now just to tell me someone would call me back within 2 hours still no call back from 5 pm last night.   Called Comcast again 40 more mins on hold and they said call back in 30 min it has already been over an hour.     They just do not care