Goibibo - Refund not provided by Goibibo against hotel cancellation

I booked a hotel through Goibibo and due to some personal reasons I cancelled it later and according to their policy if we cancel the booking with their stipulated time then full refund is initiated. I did it before time and they informed me that my whole money is refunded. But, when I saw my bank statement I saw that no refund is credited till now, So, I again contacted them and this time they informed me to go to the bank and share the ARN number with the bank to check the status of the refund but to my astonishment the bank officials told me that they can't see anything in this ARN number. I contacted them again and they informed me to raise the issue through their app, I did so but no valid response neither any of their agents contacted me to resolve my issue. Please help me with this issue as soon as possible and help me to get my refund.