Airtel — Extra internet charges on postpaid

Address:

Bangalore, Karnataka

Hi,

My number: [protected]

I had subsribed for 150rs internet pack which said 500mb of 3g data and 500mb of 2g data.
When i called the customer care, the REP told after finishing first 50mmb of 3g data we'll be getting a confirmation alert.
But I dint get any sort of such msgs. I myself changed the settings to 2g after some days. Now they have charged me rs800 extra for internet.
This is absolute looting.

Such another case happened four months back also.
pls look into it.
Regards,
Kiran