Flipkart.com - Package not delivered on time.

I ordered a Redmi Note * Pro (Black, ** GB) from flipkart.com on friday (** August ****). The expected delivery date was on **th August ****.
The package arrived at our nearest eKart Aluva Hub on Monday (** August ****) but it was misrouted to eKart Kanjoor Hub due to some mistake. I went to Aluva eKart Hub to check if there was any issues and they told me they dont have it there and will deliver to me on Tuesday (** thAugust ****) which was the promised delivery date. But then the tracking of the order shows it was again misrouted between Aluva and Kanjoor Hubs two more times. During this period they never even tried to contact me. I did receive a SMS stating delay in the delivery.
I tried calling their eKart customer care but they always give automated message that all the executives are busy. I tried calling their employee and he took the order ID but never returned my calls afterwards or gave me any response.
I have been speaking to Flipkart customer care executives and they always keep saying you will receive it the same day. It is **th August today and I have not received any informative response from them yet. I received a sms stating the package was back to bangalore Whitefield but the customer care executives keep telling its in my nearest hub. I went to aluva hub again as it was where the tracking shows my package is currently and saw it was closed due to Independence Day. But I saw a lot of packages kept out in the rain. I thought of cancelling the order but they would not provide me any information about the refund which is a great inconvenience for me.

My complaint is regarding the useless customer support of the Flipkart and the irresponsible employees of eKart who are unable to deliver me the package even though they have it near me. Atleast they could try to contact me if there is any issue.

Please do the needy to solve my issue.