Please do something please or can i go to make a ***** case on them for something i only used for 3 days and then my phone got ****** and now they say i must pay them

I am very angry now so I have seen Rains Number On Facebook this is their Number *** and I have sanded Rain A message on their Facebook messenger page when I called Rain now so few minutes back when I phoned them now I did press option 1 and the first person who answerd couldn't really remember that she gave her name when I phone now but ask her to phone me back on *** on my new cellphone number so she phoned me back she was mean and said I must make payment after I have been telling her that I wont pay because of the reason that my Phone got ****** she then told me I Must still make a payment after I tried to cancel the sim card it didnt gave or giving me any options to do it me and my mom tried and my sister and my sisters husband so it was a problems on Rain side what further options can I take please because the lady who i asked to phone me back was so rude and then i Realize i am not going to speak to her while she is so rude so I have hang up but i told her i wont pay because she told me i must pay what further steps can i take with rain any options please Because i wont pay can i make a case and go to court