Amazon India — W26+ Smart Watch

I NEED HELP - AMAZON CUSTOMER CARE. This is first time that I am facing such issue with Amazon, I have received missing product. Ordered w26+ smartwatch 1.75 inch #[protected] on 28-July-2021. Firstly I received different item, then I got it replaced, but second time I received empty box with only strips and not the watch. I told this to the delivery person but he was unable to help me, so I called customer care and had a word with the executive from Returns & Refunds team and he told me nothing to worry, they will raise investigation and asked me to wait for 5 days. Since then I am trying to call Amazon customer care, now they refuse to resolve my problem. I have called Amazon for almost 20 times and they are denying to resolve my issue. I would greatly appreciate if you guys reinvestigation and refund my money or replace my order.