Airtel DTH
Getting frequent marketing SMS

Hi

I have taken Airtel DTH where everyday they are sending marketing message which I asked them to stop but they are saying you need to contact your mobile phone operator for stopping the SMS. When I became rigid they disconnect the phone. I want to bring this to your attention so that if you can do something or suggest me something then I will go for it. I want them to suffer for the pain they are giving. sometimes the SMS comes in the night time as well..