Amazon India - Packaged not delivered

I had ordered a Fujifilm
*.* out of * stars * Reviews
Fujifilm Instax Mini * Cobalt Blue Festive Pack Instant Camera (Blue) from Amazon India on *th July **** as a birthday gift for my sister in law by using my aunties Amazon Prime account. Birthday was on **th July. When I ordered the product the delivery date was shown as *th July however the delivery date keeps on changing from * to ** to ** to now ** but still I have not received my product. I have made the online payment while purchasing the product. When i try to contact to customer care of Amazon & Delhivery (logistics partner of Amazon) but they just say the product will get delivered. Everyday i check the status on Amazon and it just show in transit. However on Saturday **th July the status showed as out for delivery at **:** Am and at *:** Pm the status changed to delay delivery on customer request which is false claim, I never asked for delay in delivery. On **th July again status showed out for delivery at **:** Am and again status changed to delivery attempted at *:** Pm which is again a false claim. I have attached the screen shot on status shown on Amazon. This package is very much important as it is a birthday gift and holds huge emotional value. I had followed with Amazon & Delhivery on daily basis just to check by when I will receive my product. I'm not sure what to do in this situation and whom to ask for help because both Amazon & Delhivery are not ready to provide any help.