MakeMyTrip India — Bus cancellation refund not initiated since 3 months

I booked a bus from Kasol to Delhi which broke down after 15 kms. Then we were shifted to another bus which also broke down and we waited for 7-8 hrs the entire night until the next morning we had to look for other transport and come back. The bus was cancelled yet no refund is initiated. Nor is anyone getting back on the same. PNR no.- 1450535 Bus was at 9:50 PM on 16/4/2022