Airtel — harassing me continuously for fake bill

I, Laxmi Narayan, Had a connection of airtel landline before. I was using it from past 3 years since Jio came.
So I told airtel cc To hold my connection, and then never I used their service.

In month of March, they called me to disconnect my airtel connection, I told them go ahead just disconnect it. And then they offered me 1 month free service so I said yes to reactivate.

Then later on, no services were given by them instead of attaching bill amount of March in April billing cycle which was meant to be free.

Before hold, I was having a due of 159 ₹ then they charged me approximately 2400 ₹ in just two months after reactivation according to them..

Now They are Harassing Me Day by day for bill settlement from[protected] or many phone no.s which I've never used their service for. Also Vivek Airtel Cc told me we are going to harass me until I pay their dues.

In legal way, I've only 159 ₹ to pay instead they are demanding 800 ₹.

Also many times I've told them, I could pay 159 ₹ if want otherwise don't harassing me regarding this..

I m asking you Where I could file a harassment case against Airtel company or hoping to sort my problem thru you.

To Airtel, If After this you will call me I'll definitely put you in horrible circumstances that you will have to pay in real.

Note: before demanding, kindly look into your system and listen the recording of our conversation.