Airtel DTH - Channels not removed

I sent the multiple emails but they are not sharing the reason for adding some garbage channels. I tell them to stop these channels that I did not choose and Airtel without any information added in my account and now if I try to add any single channel it will add extra NFC value. They are not ready to respond to my email. Below are the conversation between me and Airtel:
Hi,
I understand the steps but still, no one replies that how and why these channels being added to my account.
On Wed ** Apr ****, *:** PM Alacarte, <Alacarte@airtel.com> wrote:
Dear Wasim Akhtar,
Warm greetings from Airtel!
This is with reference to your email regarding channel number *** for your Airtel DigitalTV ID **********.
The basis on the email we would like to confirm that please set a parental lock on that particular channel which is added automatically. Our team is working on your concern we will resolve your issue soon. Further, we would like to inform you that you can lock the channels with the help of parental lock below are the steps for parental lock :
*: Press menu Key to go to the main menu.
*: Press down Arrow Key.
*: Select settings and press ok Key.
*: Press down Arrow Key.
*: Select diagnostics and press ok Key.
*: Press down Arrow Key.
*: Select restore factory settings and press ok Key.
*: Enter PIN and press ok key.
*: Select yes, continue and press the ok key.
**: Restore factory settings process start.
**: Please wait for Initializing.
**: Select English as setup language and press ok key.
**: Select Current Resolution and press ok key.
**: Press ok key.
**: Select Transponder to configure and press the ok key.
**: Check Signal Strength and Quality and press ok key.
**: STB settings have been restored.
We regret the inconvenience caused to you and look forward to a long and fruitful association with you. Please note that your reference No is ********** for any further correspondence.
Assuring you of the best experience – always!
Best Regards,
Airtel DigitalTV
Bharti Airtel Limited


On Tue, ** Apr **** at **:** PM <Alacarte@airtel.com> wrote:
Dear,
Warm greetings from Airtel!
I am writing in response to your email expressing concern over service related for your Airtel DigitalTV ID **********. Thank you for sharing the concern. The basis of your email, we are looking into the matter and will get back to you within ** hours.
Thank you for your cooperation.
Airtel DigitalTV
Bharti Airtel Limited

On Tue, ** Apr **** at **:** PM
wrote:
I already received your calls and tell you to call after ** minutes. Trai: Airtel is adding any garbage channels to my Dth and not responding.
On Tue * Apr ****, *:** PM Alacarte, <Alacarte@airtel.com> wrote:
Warm greetings from Airtel!
This is with reference to your concern regarding the concern on your Airtel DigitalTV ID **********. We tried to contact you on **-**-**** however could not establish contact with you. We request you to provide us with an alternate contact number.
Alternatively, you can also contact our customer care number:
Airtel mobile number (Toll-Free)
*****
Non-Airtel network (Tolled)
North Hub (****-*******)
East Hub (***-********)
West Hub (***-********)
South Hub (***-********)
Assuring you of the best experience – always!
Airtel Digital Tv
Bharti Airtel Limited
On Tue, ** Apr **** at **:** PM
wrote:
Hi, would request you please stop channel *** name tv. And please also provide how airtel can add channels without any notification again and again.