Flipkart — No refund for missing item in delivery

My Mother in Law had placed an order with Flipkart with Order ID: OD[protected]
Invoice Number: FAIDNF[protected].
Order Date:[protected]
Invoice Date:[protected]

There was a missing item in the delivery.
Missing item: GRB Cow Ghee 500 ml Plastic Bottle

She has raised multiple complaints but they rejected the complaints and are not taking any action now.
complaints id :
incidentId=IN[protected]

I have attached items of the delivered items for reference which clearly shows GRB ghee was not present.