Hathway — Hathway cheating by taking money and sending account activated and really not activating

I have paid for 3 month Hathway broadband connection on 9th Feb, 2021 . They installed the device on the same day as my building already has 4 internet connections. My account number is [protected]. They said it will be activated in 24 hrs. It was not. I called them and they called me to activate on 11th Feb, 2021 . They said it was activated . I clearly told them that internet light is not blinking and you can't say it is activated. They asked to reset the device and they will call later. But I haven't received any call . I kept calling daily . But no update . The incidents were closed without update. I even posted in twitter, they really don't care. They are just using customers money and patience. I wanted to file proceed legally against this fraud activities. Pls help.