Airtel — nokia n8 internet offer

Address:

Agra, Uttar Pradesh

I bought a Nokia N8 phone on 28th june. on the cover there is the offer
“Enjoy the power of Nokia N8 with Airtel
Free mobile internet from Airtel for 6 months
Just insert the Airtel SIM to activate the offer”
I inserted my SIM and started using the Internet. ( offer valid to Airtel
costumer for 6 months from the date of activation )

However i got the 2gb data free for 1 month…
But the next month there was no such free data.

When we try to contact on 198 or 121 customer care is talking for 1 minute
only after then the call is disconnect and then no receiving of call from
customer care..
This is ridiculous! Airtel a big name is doing such a fake..