Airtel — internet connectivity issue

I had a recharge of rupee 199/- from which i got 1gb/day 2g/3g/4g data + unlimited calling + 100sms per day
But i am not able to use 4g data, i am in excellent 4g connectivity area and raised many complaints to customer care. Even visited local airtel outlet in ambala cantt and purchased a new duplicate number because one of their customer care guy suggested me to do but everything is vanished. They did not resolved my issue yet.
Now i am considering consumer court option or number port option