Amazon India - Fraud by the company

I had ordered dji tello drone with HD camera worth Rs. ***** (prepaid by credit card) from Amazon.in on **/*/**. Order number was ***-*******-******* The seller was ‘Global digital India’. On **/*/** I received the package but on opening the package I was surprised to find * boxes of bangles inside it. The print label on the box carried the same order number but the seller was not the one from which I had ordered the original item. The seller on the print label is ‘Pixel creations’. I complained to the customer care of Amazon and they said that they will investigate which will take *-* days. As requested, I mailed them images of the print label and the bangles. Even after waiting for * days, I did not receive any response from them. On contacting them again, they said that they have delivered the right package. Despite writing to them multiple times, Amazon customer care has failed to provide:
A satisfactory explanation as to why the print label carries the name of a different seller.
Copy of their internal investigation report.