Flipkart Internet Private Limited — product not delivered and cancelled the order without information

I Have booked the Redmi Note 7 pro mobile phone in flipkart online on date: 25.10.19, Friday - 3: 09 pm with order OD[protected] and they confirmed that order will be delivered on 01.11.19 Friday.
On 02.11.19 i have received message from flipkart : we have escalated your issue to the concerned team. we will resolve your problem by 06.11.19, 1:00 pm.
Today morning at : 03: 50 am i have received another message like: issue resolved: has your issue been resolved? we hope you are happy with the resolution provided. you can manage your issue and give feedback.

Another message at: 07:00 am Refund processed: The refund of Rs. 9799.0 for your order OD[protected] is successfully transferred to your card and it will be credited by 14.11.19.

This is not fair and not good service from flipkart. it is just like irresponsible and flipkart point of view customer is fool. They are not delivered order properly and without information how these fllpkart team have cancelled the my order.
They are wasted my time and no respect on customer who purchased the items on line.

I hope flipkart would be understand my issue and I wanted clear explanation and positive response from Flipkart customer care.

Thanks
Benarji