Flipkart — delivery is delayed and also no update regarding exact delivery date.

Hi i have ordered hemito comfortable cotton swing for kids/babies up to 15kg with safety belt with order od[protected] on 4th of july and expected delivery date was 17th july, on 16th july it has reached to my nearest hub, but on 17th it was not delivered, on 18th i got delivery reschedule message still it was not delivered on 18th then i filed a complained on flipkart site with [incident: in[protected]], still no reply, today when i tried to track it is saying you are having no orders under my order tab.
What is this behavior... It already late by 4 days and now i am not able to track my order in flipkart website also..
This is very embarrassing and frustrating, we order from trusted website so that there is no glitch but it is not tolerable at all.
Kindly help with my order