Flashstar Commerce — order not received for redmi k20

Address:	560003
Website:	Flipkart

I have placed an order for redmi mobile on 2nd oct and have not received it yet.. It says that it will be delivered on 12th oct..in this world where i can get the delivery in 2 - 3 days. This is taking 10 days. It was huge mistake that i have ordered from flipkart. I would have placed the order on amazon or mi store.
My one colleague ordered from mi store and she received withing 3 days. Worst service ever.