Airtel — cheatting

Address:

Bangalore, Karnataka

Dear sir hope u doing good.i am dinesh chand from bangalore kormangala area. a day i got the call from tata docomo mobile customer care that they r giving offer like 350 rupees per month rental n 9 hour free talk time n unlimited 3g for every month. and i took that offer but latter tata docomo company is saying that is wrong information.and also i hav audio file of proof.they taken 400 rupees security advance also. but now they refusig for that that offer.my contact number is +91-[protected]. i wants to file the case againts tata docomo compay.pls help me how to that.