Terrible internet connection-xfinity won’t fix

Xfinity recently did “upgrades” in my area and immediately I had no internet at all.  10/31.  This lasted for a whole weekend and a tech had to come out Sunday night 11/2.  He said it was an issue with the street box.  He gave me a new modem and still could not get constant speeds.  I called and complained a week later after barely getting 1mpbs for the whole weekend.  Another tech was sent.  His conclusion was the same, it’s the street level box and a maintenance crew needs to come.  They came the next day and told him they couldn’t fix it but would be back. This was 11/13.  Another week goes by again where I barely get 1 mpbs or sometimes none.  I chat again with xfinity assistant and told them they  have to send a crew.  The assistant argues with me and told me the tech would come out and she guaranteed he would fix it.  Well guess what? The 3rd tech came out on 11/20 and said the entire neighborhood needs to be rewired and all the boxes are [Edited: "Language"] up.  This requires a maintenance crew and not a tech.  Some much for guarantee he will fix it.  Now it’s 11/24 and I have had dropping services EVERY DAY.  Xfinity wants me to pay my bill when I’m not even getting 1% of the service I pay for.   This is absolutely horrible.  I am at my wits end.  Has anyone else experienced this and is there anything I can do to get a maintenance crew out here to fix this? Or am I just going to have to get internet elsewhere?  Every time I run a test in the app it tells me to restart my modem. The problem is not my modem, its the street.  (I have restarted the modem about 50 times in the past month anyway.) I have taken a screen shot of my speed test every day and have no idea how to share it, as proof my service [Edited: "Language"].