Amazon India — non-delivery of order id[protected] amazon falsely claiming product delivered.

Order id[protected]. The last part of the shipment was supposed to be delivered yesterday, september 19. Contacted amazon 5/6 times since yesterday. Every time was assured my product is on high priority and would be delivered earliest. Today on sept 20, amazon claimed the product has been delivered which not true. After repeated complaints they claimed it has been delivered to my letter box without notifying me. Surprisingly nothing has been delivered in my letter box. Now amazon is claiming they need an investigation before refunding my money, which is another false claim i believe.in this case i simply want a refund of money, the product being clearly stolen by the courier, yes the courier was amazon transportation services