Amazon India — not received product till date showing order delivered in account

Address:

Ambedkar Nagar, Uttar Pradesh

This is related to order#[protected] which was given on 3rd august 2019 and expected to be delivered latest by 8th august but on 6th august in evening the status of product is changed to delivered, however we didn't received the product till date. I called customer care first time they told its because our delivery guys update the status but they deliver mostly next day and asked to wait till 8th august. I waited and called again on 11th august and customer care told me that we are investigating the issue for proper reasoning and product will be delivered by 14th august, please wait till that date.
However i am still waiting for the product to get delivered. Product was mixer grinder which was urgently required but such a irresponsible service being provided by reputed company is not expected. Its a belief of customer who order product and expect it to be delivered by expected date. Please help me out and get product delivered. Also i am complaining here so that strict action to be taken against such false hope company and their relevant partners who play with customers.