HappyEasyGo — non refund of cancelled ticket

E-ticket (Order id:[protected], trip was booked for rs 6452 from jaipur to kolkata for 19 mar 2020 through happyeasygo website. Online reschedule request was sent to company on dt 18.3.20. Further tried over helpline no for more than 4 hours. The company sent me a mail at 10:18 pm in the night requesting to make payment of rs 7123, whereas at that time fresh ticket was available for rescheduled day for rs 2970 hence request was sent to company for sending the details but company said, you are under no show hence no refund can be issued. I have stated when online request was sent before 4 hrs of departure hence old ticket should stand cancelled and if reschedule was not possible, refund was to be issued.