Fake and Threathning Call

I was user of your Reliance Mobile Data Card number 8595247612 , Ac 500007160029. Which i had requested to deactivate as it was sold to me by making fake promise that its gonna be a wifi device and when I checked It turned out to be a usb device which was not wifi . I told them to deactivate and i was not interested to pay after one or two bill as you guys cheated me . Today I got a call from 9015175901 & 8287772059 who again give me a mini attack by faking that they are calling from tees hazari court and some arun sethi has filled a fraud case against me . Forget about the amount as its very less and I will pay it but concern is how cheap they guys are who first sell connection by telling lies and then keep on lying till the end instead of saving their reputation . I am a patient on high BP and paralysis and i was shocked and shaken up when the lady called and said someone has put a case against me . I was relaxed when I got to know its just reliance .