Travel Triangle — Did not receive full refund

Address:

Gurgaon

I booked a trip to Bali (Booking id:7344930) through Travel Triangle in 2020. Trip cost was INR 1.1 Lakh and i paid an advance payment for INR 56, 000/- for Airlines and hotel booking.
Due to COVID, trip got postponed and after multiple follow ups i received partial refund of INR 42, 000/- and for the balance amount, neither Travel Triangle nor the vendor is processing the refund, and they are not even responding to mails or calls. Request your assistance in getting the refund.