[Resolved]  Airtel — Fake promotion for ZEE5 subscription

I was using airtel Hd set top box for many years and recently i received a call from customer care saying since i am a priority customer i can upgrade my box to an xtreme set top box where i will get a three months of zee 5 subscription for free.Later after installation they said i need to call customer care for activation of zee 5 which i did. Later after a month i sent a mail for the same activation for which i received a feedback saying in 14 days my problem will be resolved but even after 14 days its not resolved so i was sending mails but no response for the mail. Yesterday again i called customer care they said they will arrange for a call back with service request no : 33457036 which is closed by airtel without even calling me.
Why do they give such false promotion which they couldnot keep and taking so much money for each and every channel