Goibibo — Complete Refund not received

I was booking a return ticked from Bangalore to Mumbai due to website failure the Bangalore to Mumbai ticked wasn't booked and only the Mumbai-Bangalore ticket was booked.

The total round trip cost of the ticked was Rs 5,497. While booking the ticked I had clearly noted that the forward ticked would cost Rs 2,767 and the return would cost me Rs 2,730. But the refund I received was a partly sum of Rs 2,462.

For my Bangalore to Mumbai trip I had to book my tickets again by spending another Rs 2,967.

So a total loss of Rs 505 plus the money and time that I had to spend on phone calling their call centre.

Transcript of the interactions on the web site, phone and email:

1) Ticket booking on their website:
Thank you for Choosing Goibibo!
Please note your Booking ID is : "GOFLDE9A8D[protected]"
Oops there seems to be an error confirming your booking.
Your payment has been debited. We know it's annoying,
Please wait our call centre will call you shortly or you can also reach us on [protected] or[protected]
Error in booking for below itineraries
Bangalore - Mumbai
Mumbai - Bangalore
Flightno Airline Passengers Source Destination Departure Status
AI 607 Air India Mr Suresh Pg Mumbai Bangalore May 1, 2012 17:30 Hrs manual

Passenger Types 1 Adult
Passengers' Names Mr Suresh Pg
Status Confirmed
Total Fare Rs 5497.0
Email [protected]@gmail.com Booking Date: March 12, 2012
Flight No Airline From To Departure Arrival
AI 607 Air India Mumbai Bangalore May 1, 2012 17:30 Hrs May 1, 2012 19:05 Hrs

Actual Fare should have been: Rs 2,730
List fare for this ticked was: Rs 3,030.0 - Rs 300 discount it should have worked out = Rs 2,730

March 13, 2012, Agent on the phone: had promised a refund of Rs 2,600

Email received on March 14:
Dear Suresh P G
Thank you for choosing goibibo/, we appreciate your business.
Please note we have processed your refund, following are your refund details:

Reference No: GERadixx.Reservation.ReservationBase.VerifyInventory :
Date Of Booking: 12 mar 2012 18:25:37
Date Of Travel: 28 apr 2012 12:25:00
No of Tickets: 1
Amount: 5497
Refund Amount: 2462.0

Refund Date:[protected]:04:58.097858
Bank Reference No:[protected]

Note: cashbacks will be debited to your accounts in subsequent refund requests.

15th March 2012, Agent on the phone (Ruma) promised a remaining refund of Rs. 2912 - Rs. 2462 = Rs. 450 in 3-4 days.

19th March 2012, Agent on the phone (Priyanka), makes a full u-turn around and says:
The Mumbai - Bangalore Air India ticked cost is Rs 3,035 and so the refund amount Rs 5497.0 - Rs 3,035 = Rs 2462.0 as paid.