Myntra.com — Regarding rejection of picking up the return order

I am Dhaval patel . I have ordered one nike tshirt, which was found defective . So i requested for return it . When courier boy came he refused to picking the product and told me to talk to Myntra. I repeatedly called myntra and requesting but they are just delaying the thing ! Its more than 15 days and my product has not retured . And i am seeking for refund and picking up the product .

Order id for nike tshirt :- 1168792 [protected]