Firstcry.com — Incomplete Delivery of Product

We had placed an order for 2 quantities but have received only 1 set in the box. PFA the relevant images, also below are the order details:

Order No: 5813910ZFG3A08664
Product Name: Jaspo Junior Pro Adjustable Roller Skates Combo - Pink
Issue: Two quantities were ordered but only 1 was delivered

I raised a complaint on Aug 9 and provided all the relevant information. Since then there has been no update from FirstCry and I have been following up with them over call and email but no response. At times there customer support executives have misbehaved with me as well.
I have written to the Senior Management of FirstCry (Supam Maheshwari, Prashant Jadhav, Amitava Saha) but have received no response.

I had a simple request to either fulfil the complete order or refund the money but looking at the response I would rather opt for refund.