Mivi — Not Received Refund

Address:

Mivi PLOT NO.21, SY NO.1/1, HARDWARE PARK, RAVIRYALA VILLAGE, MAHESHWARAM,MANDAL, RANGA REDDY, 500005 Contact number 8099973333/91000 15400

I have bought Mivi Duopods on 20th May 2022
and returned them at my own expense to Hyderabad because the sound quality was good though but it wasn't getting properly fitted on my ears so returned them.
I mailed them too about this.
they responded too that they have received my return product and will initiate a refund as soon as possible but here I'm it's more than 17 days and I'm waiting for my refund to be received.
It cost me Rs 999
and plus shipping expenses for returning 123
and now they are not responding to any calls or Emails.
This is very frustrating my Airpods are also gone and money too.
See Rs 999 is a very big amount for people like who had saved this much to buy things like this.
I just want my refund please.