How do i pay while they had disconnected signal.

Last month I wrote a review because I couldn't get any help about lack of connection on my 5G network. Rain promised to compensate me on the days that I did not have connection but they did not. A week later it was monthend and they billed be for the whole month.I decided not to pay and they immediately cut network connection but worse of all they still add to the bill while they had cut all connection for the month of December. How do they bill me for December while their system shows that ther router was offline for the whole month.? Please fix this. I am not going to pay the extra month they have added while they had disconnected the signal on both my SIM cards. I would like rain to check on their systems the last day I was connected and bill me accordingly. I would like to settle and part ways with rain.