Via.com / Flightraja Travels — to get flight refund

Dear sir, i had booked a flight ticket in via.com and my booking details : booking reference is fmnaa2vnnwmtc, and pnr is wb3kny i had booked tickets to fly from bangalore to pune dated december 11th in indigo i flight, but got a message from airlines that flight has got cancelled due to technical issue, hence i had to cancel my tickets in indigo and book in another flight, till now i did not get refund. Airlines is telling that they gave refund to via.com.. Plz help me to get my refund.