Boat — Did not get my Refund from 71 days

I had ordered boat 601 ANC Bluetooth earphones in black colour worth Rs. 3999.00 from boat website on 10/09/2022. It was not delivered to me and returned to Boat warehouse on 29/09/2022.
It is now almost more than 2 months (71 days) but they hasn't refund my money and everytime I call they said my Refund was failed due to some technical issue and it will be re-initiated in between next 24-48 Hrs but in reality they didn't respond. I'm Very frustrated now.
Boat is a very cheater and liar company seems.