Airtel Prepaid Connection
DND not activated peoperly

Hi

I have registered my pre-paid mobile No. under DND service. It is now more than 3 years but I am still getting Telemarketing calls and SMSs. How do I complain to Consumer court? Airtel is turning deaf ear to this problem as Telemarketing people says that you number is not in list, however Airtel says they have activated this request. WHOM SHOULD I BELIEVE? I AM FED UP OF THIS.

MY Service Request No. is:- S1001728792

Please help me if someone know the procedure.

Regards,

Pankaj