Koovs.com / Marble E-Retail — Purchase of shirts

I ordered 2 shirts from koovs.com vide order id- 7872326 on 14-sep-2021, items were delivered on 21-sep-2021 and items were not upto mark so a return request was raised on 21-sep-2021, the items were picked up by delivery partner of the website on 22-sep-2021, after which no communication received from company, in reply to query raised by me via mail on 30-sep-2021, a mail was received from company on 01-oct-2021 at 11:41 am that the item is yet not received by company, after that on same day at 3:21 pm another mail received from company that the products have reached the company and upon quality check the refund will be proceed, after which received mail from company on 05-oct-2021 that items received have passed quality check, on 06-oct-2021 mail received from company that the refund has been initiated and will be credited to account in next 3-5 days, it's been more than 1 month that the amount is not received in account, several grievance have been raised but yet no reply is received from company