Revolt Motors — Revolt Motor Bike

Hi team. I booked a revolt bike RV400 by paying Rs.3999, in September 2020 and my booking ID is RV400-BLK-NOV-DEC[protected][protected]. I have cancelled my booking as on 13th of Jan 2021 and I haven't received my refund. I have called their customer care, sent an email. But still no refund from them. Please help.