Flipcart - My order canceled without any reason

I have bought a refrigerator with the exchange of my older one. Order ID is OD******************. It is prepaid order and I have paid Rs.*****. It was out for delivery since **th Oct *PM. But it did not come to my home for delivery.

According to Flipkart condition delivery and examination person, both come to gather, and if my old product not eligible I can pay Rs.**** cash at the time of delivery. I have attached a screenshot for that.

My old product disqualifies without any reason and only examination person come at home without a new product. I am ready to pay extra amount if my product disqualifies with valid reason.
Examination person who comes to my home blackmail me and ask for bribery to take old product under exchange policy. I did not agree with his offer so, he has not delivery my new product.

On the second day, I write a mail to flipkart that I agree to pay Rs.**** if my product disqualified. And on the same day seller cancel my order by saying a customer has refused it.

I have a CCTV camera in my society, So I can prove that the delivery person did not come to my home.