Haryana Transport Department — refund of the amount

I booked a ticket from new delhi to chandigarh on sept 28, 2017. Date of journey was september 30, 2017 11:30 am. However, on the date of journey, bus had a break down, so we were unable to board. We have not received the refund yet even after continuing follow up mails. Pnr: sep176992, trip id: [protected]. Request you to initiate the refund at the earliest.