Airtel World Calling Card — Incorrect tariffs as shown on the International Airport

Hi,

I am in Switzerland these days and would be here until 16th Aug, 2009. I bought Airtel World Calling Card from IGI Airport worth Rs 500. The vendor showed me rates from Switzerland to India as Rs. 9 per minute, which meant 55 minutes talking time.

Now, when I tried, it shows only 10 mins of talking time ie Rs 50 per minute.
This is cheating. When I try to call Customer Care mentioned on the card by pressing *0, there is no support from them, and they deny to inform me the rates and ask me to call India Customer Care.

I have no clue how to reach Customer Care as there is no information on the website also available in regards to this.

Please help me resolve this at the earliest.

Thanks,
Ankur Jain