Flipkart — Flipkart not returning money worth 38900 INR

Address:

New Delhi, Delhi

I ordered an Apple iPad Air worth 38900 INR, through an advance payment. After 15 days, flipkart just called up and they said that we are unable to deliver the product When I aksed for the refund, flipkart committed the refund to happen by next 8 business days. Its being more than 25 days and Flipkart is not returning the money. Its unfortunate and sad to deal with companies like this who have such a poor level of commitments...I need my money back with the interest.please suggest