Airtel — wrong recharge due to airtel customer care suggestion but refund not initiated

I have called customer care of airtel to request to tell me the 30 days plan for uk as international roaming.

I checked with her follwing:

1. Recharge amount: she said 2500
2. Validity: she said 30 days
3. Whether 3g will work there or not? : she said yes
4. Free incoming calls : she said, unlimited free incoming
5. Outgoing: she said 1500 minutes.

So i did the recharge while i was on call with her by confirming the recharge amount 4-5 times.

She also told to keep balance more than 100 rupees.

So another 400-500 i have added recharged.

Now my family girl went to uk and she called, we called h thinking its free but after few minutes call disconnected.

When i called airtel customer care they told " sir yor have put malaysia pac/wrong pack

I told i was given this pack by your customer executive but they said that i never called.

This is the limit.
I am loosing the trust on airtel completely.
This happened for mobile number: [protected].

From 3-4 months i am trying to get refund / adjustment of the money but no use.

How can airtel cheat a customer like this.
I have loosed 3000 rupees almost.
My number [protected]