Myntra.com — delivery not made (no option to cancel the order)

I have ordered a roadster jacket on 21st june, due date of delivery was before 3july yet its 9th july and there is no update from them... I have called customer care 4-5times.. All they do is ask to wait for 3 days or 24 hours.. And still don't get an update from them... They say when the order is marked as status-"shipped", no one has the option to cancel the order. I have made the payment on 21st june itself... They need to work on their refund, cancellation policies. They say unless the delivery boy comes home with the product, i can't cancel or reject the order... But they are not working on the delivery