False bill terminted service

My bill raised every month by hundreds of dollars

 they made me pay it by threatening to cut it off even though it was supposed to be 85 a month for two lines

 with insurance and device payment 

they shut off my service one day because  my bill went from 85 to 200 to 350 a month to $1,900 yeah I said it nineteen hundred  dollars

 they refused to investigate or fix it and sent it to collections Taking my phone number of a decade long with it that I had ported over six months prior

 I’m sick to my stomach still