Tatacliq — Online purchase has not been delivered after 2 years and refund also has not been effected

I have placed an order on Tatacliq on 16 May 2020 as per Order ID:[protected] for "Varanga Navy & White Cotton Embroidered Kurti Palazzo Set" and an amount of Rs.1469/- has been issued through net banking. But the order has not been delivered to me till this date and the status of the same has been showing as "Could not be delivered - Any paid amount will be refunded in 4 business days." I have contacted the company through email and phone but the refund has not been effected till this date.