Airtel - Regards multiple bill payments

I have made payment of my Airtel broad band twice, one was failure and one was success, but both times the amount is deducted, can i know by when my amount will be refunded, the transaction was made long back on ****-**-** **:**:**.*** and i haven't got any refund till date.No one from customer care is responding to any of my calls nor through mail.

Here is the transaction failure id which i got for Airtel:
*********

Here is the transaction id of my bank which has been deducted:
Inb/*********/Ccavenue.Com / Charge/

Mail from Ccavenue, who is the * party payment gateway.
As we can see your transaction is successful ,below are its details.
Order # *********
CCAvenue Ref. : ************
Date : ****-**-** **:**:**.***
Order Amt:
****.**