Flipkart — Not received the product after payment

My order Id is OD[protected].

I have ordered 6 items of grocery on 24 july 2022and paid full amount . the delivery boy delivered the 5 items on 26 july 2022, i thought that rest item will be delivered in few hours or days but have not received the item till now. I am calling them and asking for the help, or resolve the issue.
No action has been taken till now, Every day I am calling them they put me on hold for 15-20 minutes and thn says that the concerned department will get back to you in 24 hours, 48 hours, 72 hours.

Everyday I wait for the call but no call/ mail/ msg.

A very pathetic experience.

Will never use flipkart grocery in future