Airtel — airtel unlimited plan for 28 days gets deactivated in 15 days

Address:

Mumbai City, Maharashtra, 400005

I have recharged my airtel sim with rs.169 pack, advertised by airtel (Unlimited calls+500 mb data for 28 days). However, after 15 days i couldn't make any more calls, neither do i have any internet. I tried to call the customer care several times, but failed.

Same thing happened with my wife's number for recharge amount of rs.199. I am really frustrated with the quality of service let alone the cheating which airtel should fix asap.