Airtel — refund/reversal of wrong transaction

I wrongly recharged of rs.448 to some other number [protected] instead of my number [protected]
When i seeked for reversal of the same i was told that it is not possible
However other mobile service providers are reversing or transferring the amount
To the right number (Copy of the same case of vodafone is enclosed)
I want my money to be either refunded to my bank account or to transfer it to my mobile number asap