Airtel — complaint against airtel network offer

Address: Chennai, Tamil Nadu, 600100

I'm a airtel network user from 2007, last 6 month there provide 399 offer only when recharged 349 pack. At end of the 349 pack validity day there not provide this offer. It's continued regularly. I already complaint against this to customer care. But no one take action. There hire official people told about this is provided by marking team we can't do nothing. Is this correct response?