Flipkart - Flipkart -POCO F1 mobile order cancellation

hi,
i was able to place the order easily yesterday during the flash sale and order was confirmed, and after some time i received a message that the order has been shipped. but now suddenly they cancelled my order. (attached the screen shots) . amazingly i am flipkart plus user too, so this is how flipkart treats you.

when i called them to inquire about the cancellation, they are saying as bulk order was placed during the sale yesterday, so seller is not able to process all the orders. thus we have cancelled your order, and they asked me to try my luck once again during the next sale. how can seller cancel the order, when it has already been shipped ? (attached is the shipment details)

i don't know, why are they making consumers fool, if they can't handle their seller and their software ( plaftorm) . it should have displayed out of stock immediately and shouldn't have confirmed my order.

flipkart, let me tell you on irctc everyday lakhs of tickets are being booked during tatkal, and i have never heard a single incidence that they have cancelled confirmed ticket or bulk order kind of blah blah stuff.

flipkart is just making fun of it's consumers by creating sale hype and then cancelling the orders, so that the demand and supply mismatch is there.
i want the order to be placed again from flipkart's side and to be delivered as promised on **st august and compensation also for such trouble i am facing .

order number :od******************