Amazon India — received bowl instead of a lg microwave oven

We ordered lg 21 l convection microwave oven (Mc2146bp, black)
(Sold by: brand authorized sales) costing rs.11400 on 27th nov (Order#[protected]. We received the package by delhivery courier service on 29th nov. After opening the package treo bowls were packed inside instead of our expected product. We immediately contacted customer care raising the same concern. First they confirmed that the order is still not delivered and will be delivered by 2nd of dec while it was showing delivered in app, they told there might be wrong update on app. But when we contacted again saying in app status is still showing delivered, they confirmed the delivery and accepted our complaint. They sent us a mail to confirm it. And conveyed us to wait for next 48 hrs to investigate and get back to us on our complaint. Later when we reached on 2nd to know the update they told that they have initiated investigation and it is going to take 5 more days to have a confirmation about wrong delivery. Now, again when we contacted support they came up with a next date as 9th of nov. Meanwhile they sent us email raising suspision about us that they have seen our order history and it seemed we have larger no of refund cases from us, which is not at all true as we havent returned or replaced anything from amazon before. Last, 12th is the deadline for return of order and we can hear from them on 9th only which might be delayed further leaving us no option for return.