Myntra.com — delay of delivery and no response from customer care

Address:	East Sikkim, Sikkim, 737102
Website:	Myntra

I made an order (Order no.[protected]-3270701) on myntra on 29.10.2018 in the name of neeraj through net banking.
When i ordered it they promised me on the app to deliver it by 7.11.2018. However till 9.11.2018 the delivery was not made so i called the customer care and they told me wait till next 48 hours. I did wait for next 48hrs. Again on 11.11.2018 there was no delivery i had to call the customer service again thry told me to wait another 24 hours for the delivery. I have been continuously asking to cancel the order and refund my money back but they are declinng it was