Cheapticket.in / Airtickets India — convenience fees

Hi, this is regards to my booking id 2432778, my flight from Bangalore to Sydney had been cancelled by the airlines and since I had booked my flight ticket through cheap Ticket I requested them to cancel my ticket and refund my money. As per airlines they had confirmed that I'm eligible for a full refund including the convenience fee charged. Cheap ticket is denying to refund the convenience fee.
Kindly look into this matter.