Airtel Postpaid — Over Bill for Data Usage

Address:

Bangalore, Karnataka

hi,
[Rs. 2000 for 100 MB Data Usage]
I have applied for MNP to Air-tel in recent months, I have been told that I can avail 1GB of Data for 3 months [as per my understanding].
i have started using GPRS for checking emails and downloading one or two apps for more than 10 days.
later I got shocked by seeing my bill statement.
I have been charged Rs. 2000 + for my Internet data usage. soon after I called customer care., they said its the correct charges... I was not able to agree with them. so i have raised a complaint with them. they said they'd look forward.

later days I got some calls. I conveyed my issue, they replied, they'd take it to higher / or other [concerned] team.
but no response.
today. i got a sms saying my bill was over due, so they have given my details to third party for my bill payment assistance.
I really not able to accept Air-tel sharing my personal details to some of its partners.

now, hereby I declare that I'm ready to pay for my voice call charges if they are ready to exclude Rs 2000 for my Internet data usage.
I don't know the consequences of Air-tel sharing my personal details to other vendors. its really not making me comfort with air-tel.

if you provide me any guidance for my further movement would be appreciable.