Myntra.com — cancellation of order after 8 days of placing the order

I am a new customer to this online shopping site. I have placed an order of atorse backpack on 15 of august 2017, it showed it will get delivered on 30th of the same month. When i placed the order it showed available and after 8 days of ordering it now when i tracks it, it's showing that it had cancelled on 23rd of august.

I have been eagerly waiting for my bag. I want the same bag on same price. This is most disgusting way of treating customers. It's called cheating. You have disappointed me myntra.