Postpe — Getting access of my contact list and spreading rumors

Address: Delhi

I am a postpe user since 2021 . I have always paid my dues on time and cleared all bills. Due to some financial emergencies i was unable to pay their dues on time for few months . But on April 4th after having a conversation with their agent i made some payment. Now they started calling me all of a sudden and asking me to pay 6000 rupees anyhow at this end point of time in month which is not possible for me . They even said that the agent i spoke with provided wrong information. Now i am not responsible for that .but still they are threatening me and giving calls to random contact list people and spreading rumors that i took loan from one card or Bajaj finance or something else which is totally a lie as i don't have anything as such. My image is getting spoiled beacuse of this. I am not a wilful defaulter and i am trying to clear of my dues but this unethical behaviour of stealing contact list should stop at the earliest